Just received mine and am impressed. Seems solid, looks good, hit's like a tank and the price is right. I'd recommend the following if you buy one: 1) Be careful as the 510 on mine was not screwed in and hit the floor as soon as I opened mine. Luckily it hit the wood floor where I could see it so no screw hunt today. 2) Since it's adjustable rather than spring loaded, I stuck on a heat sink (SKU 9641990, or any other) so I wouldn't have to be continually adjusting it when changing attys...though you might have to deal with similar adjustment of the heat sink.

Recently received my Mad Dog (Styled) GTA and couldn't be more pleased. It's a remarkably easy single coil build. The clamp screws come way up so you can turn the clamps 90 degrees, lay your wire down, tighten it a bit, easily position your coil and then tighten when you're satisfied. I started with a 4 wrap, spaced 3mm Half Staggered Fused Clapton wire (SKU 6191910) giving .23ohms. Been hitting it between 45W - 50W but I'll have to experiment. Probably could have gotten away with 3.5mm but that would have been cutting it close with thick wire. Make sure you use plenty of wicking and I've learned it avoids leaking to not wet your wick & coil before filling. This allows the wick to absorb much of the juice when first filling. It's also a good idea after filling to invert the RTA when you've screwed the top on most of the way but don't tighten it till you've inverted the atty (like Kayfuns of old). This causes tightening to force air, not juice, into the chamber so the juice doesn't leak out of the air holes. You can vape it without firing or let it sit for about 5 minutes to let the wick thoroughly moisten.

It's gotten to the point where I'm somewhat satisfied if a low-priced piece of electronic gadgetry does half what it promises. This guy is a pleasant exception. Granted, I've only had it for 2 days and may be eating these words tomorrow but today I'm a happy camper. Haven't figured out if you can switch folders as it doesn't come with instructions (at least mine didn't). Maybe I'll find them somewhere out on the internet. Originally got it to patch into my car's AUX but I stuck a pair of $11 Sony headphones on it and the sound was fantastic. They throw in a set of ear buds that I sent directly to the growing village of "Budville". The screen actually displays what's playing and with a potential of up to 32GB, I doubt I'll run out of MP3's (or WAV's & WMA's). Even has a functional equalizer of sorts (Jazz, Pop, Classical, R&R, Calypso???). I can't tell much difference but it's great to know that, like He-Man, I Have The Power! Got a few in the past for about $3 that function...basically but this one's more than a bit of fun.

Most please with this purchase. Good air flow with room to build (or use pre-wound coils) as large or small a coil as you choose. Will admit that when I first tried mine I forgot the top slides to refill (quite nicely) and tried my best to screw it off. Luckily it's a sturdy little sucker and I failed to damage mine. At a few cents more than ten bucks you can't go wrong with this one.

Really pleased with the performance, looks and ease of build. Good vapor production for DTL but with adjustable air flow should also be fine for MTL. Capacity's no big concern for me but while it's specs say 4ml I'm pretty sure it's only 2ml. Really easy build and while I doubt the post holes would accomodate 2 Juggernaut (or other really complex/big wires it should be fine for Claptons or 2 Aliens(?).For less than $6 bucks I doubt you'll be disappointed.