My system came in to the hobbyshop Monday, so I've touched it and read the manual and the website, but haven't bought it and installed it yet.
With the speeds they state, I would expect it to be equivalent to a Novak 5800 in power (at 7.2v) but with 3500kv and the ability to go higher with the volts. You can use nicd, nimh, or lipo, but depending on your load, it can kill nicd and nimh with high amp draw. It is a normal sensorless motor, so theoretically it would work with other sensorless esc's but the reality is for all esc/motor combos some work better than others. I haven't heard of anyone mixing and matching yet.