My wife uses a provari/nautilus mini setup which I have to admit is pretty good. It's not at the level of a reo, but I could certainly live with it should the unthinkable happen and all the reos in the world suddenly melt into ingots of slag.
For her, the vape balance is tilted in favour of convenience and lack of maintenance, which hers delivers on with pretty good performance. Mine tilts towards performance, durability, and simplicity (while being the most convenient RDA system I've found - YMMV).
Soooo... nope, wouldn't switch, but acknowledge that tanks and APV's have come a long way and can deliver some very good results these days.