Alright so ive been vaping for roughly 5 years. Ive gone through Subohm tanks, to RDAs back to Subohm, then landed in the RTA dept. I like to do my research before every buy. I first bought the Profile Unity RTA equipped to a Tesla Invader 3 Mod. Now these 2 are not suppose to be paired together since the lowest range on the Invader is like 100 watts. But i made it work. After several horrible attempts (Dry hits from hell) i finally got it right. Its been my daily heavy hitter for almost a year now. Only flaw i can say is how easy the glass can break from a short tip over. (i.e sitting on a table and it trips) Glass shatters immediately. Ive replaced the glass about 4 times. After the last time, i had to fix the issue. So i opted to buy a new mesh RTA. The Kylin M has been toe to toe with the Profile based on internet reviews. So it was my first buy, naturally. Now the Kylin M solved the glass shatter by making the glass sit alittle further in than the Tank itself, unless you use the bubble glass. Cool right? I thought so. Now i built it, slapped it onto the Invader and it was good! issue is, it doesnt last long. The high wattage shortens the life. Only allowing a few days before i gotta change it out. Versus the Profile this was a thumbs down. The profile paired with my Invader would last atleast a month. There was alot of hype surrounding this new RTA called the Doom by Damn Vapes. I researched alittle and decided to buy it also. I was sent a defective Tank, the clamps would not bite the mesh strip all the way, causing shorts and coming loose when trying to stuff the cotton in. I have to say folks, out of the 3 Mesh RTAs currently on the market, the Profile Unity RTA is still the king. It can handle high wattage regardless of what mesh strip you use, itll last however long you want it too, and keep kicking. I will buy a new glass for mine and retire the other 2. What do you think of Mesh? Have you tried these tanks before? Give me your thoughts.