I was disappointed as well. I almost exclusively use glass carto tanks and was looking forward to the "plug and play" aspect of the Protank. In addition to the airy draw, mine leaks more than it should and, as I have posted on other threads, it doesn't perform well when the glass is cold. That said, I've gotten used to it. For me, it takes about as much fiddling as a Stardust, but it is glass. It also doesn't seem as flavorful as my carto tanks, but I don't have to prime cartos.
I had ordered two more and was disappointed enough with the first one to cancel the order, but have since acquired a second. The new one is just as airy, but hasn't leaked so far. I restricted the airflow on the first one, but it seemed to make it leak more. (I've been told the design is airy on purpose, so it won't leak, but I don't know if that's true.) I used a band aid, by the way, which actually worked quite well, since it has tiny holes that still let air in. I haven't tried restricting the airflow on the second one.
Other people have had different experiences, but for me: it gets points for being glass and ease of use; it loses points for airiness, leaking and loss of flavor. Overall, I think it's okay, but not the greatest. I also would not recommend it for new vapers, since if a person hasn't dealt with leaking onto the battery connection, occasionally getting a mouthful of juice and an airy draw with other devices they may get frustrated.
ETA: As long as we're posting "How I blocked the airflow" pictures
i have 4 of them and not 1 leak.
there was a batch of them out that had leaking issues.
supposedly they solved the problem.
most retailers, from what i have heard are doing exchanges.
