A lot of people say there shit, Ive rode them and if you have them built up good they can work wonders. If you want some rims that can take anything though, get some Atomlabs, I love mine.
definatly dont get one for ur bak rim. mine broke in about 6 months of very light riding. my front one is running strong and has only had to be trued once in a year and a half
Realy depends on how you ride, but if your looking for a rim that isnt too pricy still made by sun ringle i would def look into rhino lites welded and machined. i ran a set of 24" on my le toy for a solid two seasons, with a little maintenance every now and again. Way lighter and cheaper then a lot of the more trendy brands. There is no such thing as a bombproof rim if your a hack of a rider.