I can only agree with Freedom2Vape here. I have 4 SQuape R, all running with no issues for months now. Easily the greatest tank I've ever used, no doubt about it
And as mentioned in the post you quoted rolf, the clones are pretty "unreliable" to say it in the nicest way possible. Just remembered now, that I actually received one at some point, with glued glass. Who in their right mind would do that?! Anyway, if for the o-ring issues: Make sure that they're correctly seated (if your clone have grooves for the o-rings) and lube them and the outside of the glass up with PLENTY of e-liquid, before attempting to seat the glass. It's tricky, but it can be done. I've only tried it on a clone though.