Was not an immediate hit in our house. I was expecting to be blown away when I first installed dual Tri-Core Stainless Steel Claptons from Advance Vape Supply ohming out at 0.21 running 65 watts with COTN shoe-string wicks. First thing I noticed was there was way too much air. Closed the air control ring just a tad more then half way and put my expectations on hold. Vaped away and the more I vaped, the better I like this Stacked RTA. But let's back up a little. First, the clamping system for the coils is just fantastic. Solved the need for three hands when installing dual coils. LOVE it....just LOVE it. Also, the bubble tank I hoped to warm up to leaves me cold. In fact, I hate it. Just like all the other bubble tanks. But not a problem really because this tank is just simple to fill. Like any top fill tank, simple twist off the top and squirt in the vape fuel. But unlike so many other tanks, it does not bleed liquid out the air intakes the minute you break the vacuum. The flavor is exceptional. Thick, dense vape produced is chocked full of flavor. Simply stated, the more I vape this lovely little number the more I fall in love with it. Now I'm a fan, a HUGE fan. I still wish the air intake was half the size but fortunately, no whistling when I close it up by about 60 percent. YEP ! ! ! I'm even going to buy one for the wife. She'll love it too. Nice job Kaees! Another quality RTA constructed professionally from superior materials. Nice job Tony B. ! ! Well thought out design producing thick, dense, flavor packed clouds of joy ! ! Thanks myVpro ! ! Fair price, free shipping and lightening fast shipping. Exactly why this is the first place I look when shopping for quality vape supplies. Thank you for helping us stay off the stinky sticks.