The rim strips were too wide for my rims, so I just used the tape, sealant and valve stems to set up tubeless. It works great, but the kit doesn't come with the stems so you'll have to shell out some additional money for those.
However, going tubeless is awesome. For big volume tires, (2.4 Conti X King & Mountain King), I was able get a more supple ride with the same pressure, but less sidewall flex in the corners. Traction is also greatly improved.