You cant go wrong with a reo. If you get a low profile grand you have alot of options as to rdas you can use. I've only had my grand a week but since it showed up I haven't used anything else. When I bought it, I purchased some extra bottles and currently have three of them filled with different flavors. Takes about thirty seconds to swap out. The rm2 is the rda I have and I love it. Really easy to build on and flavor is great. When I first started vaping I enjoyed buying new hardware every other day and trying new stuff out. After a while though, vaping became alot of work. Constantly cleaning tanks, pre built coils, charging batteries etc... Now all there is to do is enjoy my vaping. I use my rm2 as a dripper when im making new diy flavors, but other than that I just swap batteries once a day, make sure I've got juice in my bottles, and squonk away. Hassle free and not alot that can tear up. I love it