I'm looking to get a 2nd mod. Currently I can get either for pretty much same price atm. I don't mind bulky mods. Been lugging my maxo quad around daily since November. Here is what I narrowed the pros & cons to. Rincoe Mechman: Pros-Sturdy frame, good temp control, & accurate wattage output Cons-Might feel uncomfortable in the hands Voopoo X217: Pros-21700s, good screen, large 510 plate,known reliable chip system, & good ergonomic frame. Cons-Door hinge may fail, & their is slight battery rattle(gets worse with 18650s). Honestly though, that wouldn't bother me much.