Yeah, the Cleito's performance is hard to knock. I personally like the .4 ohm coil over the .2, only because they perform about the same but I can run the .4 at lower watts to conserve the battery. I am also having a hard time finding a good deal on the Cleito coils, using the .2 ohm now but not as happy with it.
Right now I have the .5 ohm coil on my Crown, it is blah compared to the cleito. With the .25 coil though I have gotten excellent performance with it using the IPV5 over my RX200 or Stout, I don't know why, must be that the Yihi chip has a faster ramp up at higher wattages but the Crown really performs with the .25 ohm coil on the IPV5 at about 60 watts. I even took it up to 100 watts, not something I do with any other tanks and while it was too hot of a vape for me but it still rocked.
My preference is still for the Steam Engine though, mainly for the thick, cool and tasty clouds at 45 watts with the parallel coil. I am not into hot vapes even though I sometimes get carried away with my Crown and Cleito. The Clapton coil on the Steam engine is my favorite coil and at .7 ohms it performs well in the 30 watt range for me. With it's 6ml capacity I can take it on the road and not have to worry about refilling it, can't say the same for the Crown and Cleito, lower capacity and a lot more juice hungry.