I've finally got around to this - a great procrastinator am I! 
I first saw this mod on the Internet and it was love at first sight. I posted on the forum asking who has stock and The Vape Guy saved the day. The mod was new on the market and hadn’t arrived in SA yet, but Bumblebee made a point of ordering it for me. Thank you, @BumbleBee!
I'll start with my likes/dislikes, with pics where relevant. I'll give the specs at the end.
What I like about it
I’ve been using this mod for about a month now, so we’re past the honeymoon stage – and I’m still in love! This is the most elegant mod I’ve ever seen. Thin and classy – everything that I aspire to be. It would be completely out of place at a braai, but quite at home in a fancy restaurant.
One side is smooth, but the other has a grooved, whirled pattern which catches the light – and changes depending on the light. Here’s a some pics to show you what I mean.




It’s very light and comfortable in the hand.
The draw is good; the flavour is good.
The battery lasts me about 8 hours of more or less continuous vaping.
I also love the narrow drip-tip!
Now here's a clever thing - the slot for the charger cable is underneath the mod, which means that you have to lie the mod flat when charging. At first I thought it was silly, but it isn't, because this mod can topple over quite easily!

What I dislike
Bottom-fill, which I can live with, but I prefer a top-fill
The airflow ring is rather difficult to adjust. As you can see from the pic below, it’s narrowly wedged just under the tank. I have difficulty adjusting it – and I have small fingers. Unfortunately when I remove the tank to refill, I often move the airflow ring as well, so it can’t just be kept the one that one wants it to be. In addition, when replacing the tank if I screw it back on too tightly, the airflow ring won’t budge at all.

Because this mod is so thin, it isn’t too stable when standing upright and one must take care not to knock it over.
There's a design flaw:
The tank looks top-heavy and ever-so-slightly wider than the mod. Not that there’s an overhang – it just appears to be wider and it bothers me a bit. To me, the problem is with the glass part of the tank. The device could have been slightly wider to accommodate this. I don't know if you can see what I mean in the pic below.

EDIT: forgot to include Specs - here they are:
Eleaf BASAL MTL Mod Kit Specs:
Dimensions: 76.3 x 36.6 x 15.0mm
Output Mode: VV/VW
Output Wattage: 1 – 30W
Maximum Charging Current: 2A
Built-In 1,500mAh battery
15mm Ultra-Thin Box Design
Portable and Easy to Use
Efficient Charging
Spring-Loaded 510 Connection
Over-Charging Protection
Over-Current Protection
Over-Discharging Protection
Eleaf GS BASAL Tank Specs:
Dimensions: 15 x 56.3mm
Resistance Range: 0.6 – 3.0ohm
1.8ml E-liquid Capacity
Refined Airflow Control System
Optimized for MTL Vaping
Durable Stainless Steel Construction
Easy to Reassemble and Clean
New GS Air Coils
GS Air 0.75ohm Coil Head (8-25W)
GS Air 1.5ohm Coil Head (8-20W)
510 Threaded
Eleaf BASAL MTL Mod Kit Contents:
1x Eleaf BASAL Mod
1x Eleaf BASAL Tank
1x 0.75ohm GS Air Coil
In conclusion, I love this mod and I wouldn't hesitate to recommend it to anyone.
I first saw this mod on the Internet and it was love at first sight. I posted on the forum asking who has stock and The Vape Guy saved the day. The mod was new on the market and hadn’t arrived in SA yet, but Bumblebee made a point of ordering it for me. Thank you, @BumbleBee!
I'll start with my likes/dislikes, with pics where relevant. I'll give the specs at the end.
What I like about it
I’ve been using this mod for about a month now, so we’re past the honeymoon stage – and I’m still in love! This is the most elegant mod I’ve ever seen. Thin and classy – everything that I aspire to be. It would be completely out of place at a braai, but quite at home in a fancy restaurant.
One side is smooth, but the other has a grooved, whirled pattern which catches the light – and changes depending on the light. Here’s a some pics to show you what I mean.




It’s very light and comfortable in the hand.
The draw is good; the flavour is good.
The battery lasts me about 8 hours of more or less continuous vaping.
I also love the narrow drip-tip!
Now here's a clever thing - the slot for the charger cable is underneath the mod, which means that you have to lie the mod flat when charging. At first I thought it was silly, but it isn't, because this mod can topple over quite easily!

What I dislike
Bottom-fill, which I can live with, but I prefer a top-fill
The airflow ring is rather difficult to adjust. As you can see from the pic below, it’s narrowly wedged just under the tank. I have difficulty adjusting it – and I have small fingers. Unfortunately when I remove the tank to refill, I often move the airflow ring as well, so it can’t just be kept the one that one wants it to be. In addition, when replacing the tank if I screw it back on too tightly, the airflow ring won’t budge at all.

Because this mod is so thin, it isn’t too stable when standing upright and one must take care not to knock it over.
There's a design flaw:
The tank looks top-heavy and ever-so-slightly wider than the mod. Not that there’s an overhang – it just appears to be wider and it bothers me a bit. To me, the problem is with the glass part of the tank. The device could have been slightly wider to accommodate this. I don't know if you can see what I mean in the pic below.

EDIT: forgot to include Specs - here they are:
Eleaf BASAL MTL Mod Kit Specs:
Dimensions: 76.3 x 36.6 x 15.0mm
Output Mode: VV/VW
Output Wattage: 1 – 30W
Maximum Charging Current: 2A
Built-In 1,500mAh battery
15mm Ultra-Thin Box Design
Portable and Easy to Use
Efficient Charging
Spring-Loaded 510 Connection
Over-Charging Protection
Over-Current Protection
Over-Discharging Protection
Eleaf GS BASAL Tank Specs:
Dimensions: 15 x 56.3mm
Resistance Range: 0.6 – 3.0ohm
1.8ml E-liquid Capacity
Refined Airflow Control System
Optimized for MTL Vaping
Durable Stainless Steel Construction
Easy to Reassemble and Clean
New GS Air Coils
GS Air 0.75ohm Coil Head (8-25W)
GS Air 1.5ohm Coil Head (8-20W)
510 Threaded
Eleaf BASAL MTL Mod Kit Contents:
1x Eleaf BASAL Mod
1x Eleaf BASAL Tank
1x 0.75ohm GS Air Coil
In conclusion, I love this mod and I wouldn't hesitate to recommend it to anyone.
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