I got my sphere comp and vector 4-star, not tried them yet, but some interesting things to note.
it comes with a 'power' cap pre-installed, it is not wired direcly to the solder tabs and some out the side with the FET lead and reciever plug, I thought this was a neat little trick, you can hide' the cap under the solder tabs as well so no extra floor space is used up.
it has a very cool looking blue LED on it
its auto sensing brushed and brushless operation, you don't need to switch profiles when switching motor types
its Li-Po safe, it has auto cut-off when you use Li-Po
vector brushless motor is 8500 KV, and 61200 rpm on 7.2v.... OMG!!!
needless to say... its going in my 2WD