I'm new to the e-cig world, but I made a HUGE mistake. I bought BLU cigs. 200 bucks later, and I bought the JOYE 510. Huge difference. I've read enough that everyone is paranoid about promoters posting and pushing their brand. Fine. Don't buy the 510. I have no idea if it's the best. All I can say is, the BLU line sucks. Really bad. Really really bad. The one I just got is 10x better, and the same price (at least if you look around). Seriously, why is BLU in business??? I didn't know e-cigs were this good. Done with tobacco cigs.
Seriously, for the newbs, don't by BLU. The drag sucks, the TH sucks, the batt sucks, and you can't buy liquid which I didn't understand until today. Buying e-iiquid is awesome. Sorry, I'm just really happy vaping something other than baseline nonsense. DON'T BUY IT. I imagine there are other brands that suck, please make a thread for brands so newbies like me won't buy them and waste 200 bucks trying to "upgrade" like the BLU rep told me to do.
You are in good company. There are probably about 1000 posts in the last 9 months stating the same thing you stated. Same goes for GreenSmoke and SE. Fortunately, most on here will steer you clear of bad PV's like Blu. Unfortunately, there are also a few on here, who for some sick reason, will try to convince you that it's not the device but the user that is the problem. They will try to teach some elaborate, stand on your head and spin method to get good use out of these POS models. Don't listen, just move on, get a good PV and guide others away from these models.