Alright, so I have been out of the vaping scene for about 4 months or so... I was able to quit, but started back recently... Because I had sold off all my old vape gear, I just bought a Lavatube 2.5 starter kit to get back into things, and ordered a ProTank 2 cause it looked pretty good, and was new... I'm a fan of trying new things... I must say, this ProTank 2 is FANTASTIC! I can honestly say, it is probably the best vaping device I've used. Excellent built quality, excellent price, excellent flavor, excellent vapor production, no leaking at all - dry as a bone! I'm very impressed... And, it doesn't have the pain in the butt factor that goes along with an RBA, and the heads are so cheap, I doubt I'll ever bother trying to rebuild them. I know they've been on the market a while now, but if you haven't tried one yet, go ahead and give it a go! They're great!