I would take a Crown over an STM ( I have both). The pre-maid coils are nice, if that is your thing (not mine). The RBA section is basically the STM deck, so it's easy to build, but it's even easier to work with because it just pulls apart ( I used to cut my fingers unscrewing the STM chimney base V1, V2 needs a screwdriver I think). Also, it has better flavor (might be subjective) and more air ( I keep it on the lowest setting, I mouth-to-lung mostly). And, thanks to the little pedestal the drip tip rests on, the tank portion doesn't annoyingly touch my chin as I vape ( like the STM does).
A con for me is that the deck is so tiny that it's difficult to fit a long coil in there because you have to bend the legs back to meet the screws. My build is only about 6 wraps 26G spaced and that seems to be the limit because my legs are just about touching the next wrap. If I want to build higher I guess I should switch to a different gauge. How do people even build it with long Ni coils?? I wish they would offset the screws a bit for the next version.
I gave up on the top filling. I was getting too many leaks and/or gurgling, and it just wasn't worth the hassle considering you have the option to bottom fill. Honestly, if it weren't for that option, I probably would have given up on it.
I have never owned a Lemo 2, but I give a major thumbs up for the Lemo Drop (and still my favorite).
