So I won a reaper plus from heaven gifts they shipped it fri and just received it 2 hours ago. I have to say i been in awe since. I'm more into rta's myself but this thing blows both the bellus and crius away. It comes with two coils one nichrome the other ss but both are triple parallel. I've got a vtc mini and 75w is barely scratching the surface of what this tank can do. The flavor is on par with my bellus with dual clapton and airflow is like nothing i've tried. Also theres 5 coil options avil for it single clapton dual clapton and ceramic. I know with the dual clapton it would leave my bellus in the dust in the flav department. The rba that comes with is a dual coil velocity style deck! The wire holes are on the small side but can fit 26/32 clapton (so i'm happy). Sadly i dont own a tfv4 (i've used one but don't think that counts for a good comparison) so if its better is still in question but i guarantee it's a close call. Also the top fill is alot like the crius but instead of just a little rubber seal that can shift the hole ring is rubber underneath. If your looking for a a tank that has crazy air flow, great top fill, coils for most any purpose, velocity rba (do i really need to say more) get the reaper plus.