looks( in my opinion)
speed ( not good but not horrable ether)
bolt and eyes
we were testing guns at my friends house there were about 7 different guns there including vs2 we shot about 500 balls out of each gun all the guns had halo b,s and steely air tanks (refilled after every 500 shots or so) we decided to shoot the vs2 last because it was one of the better spyder that were out at the time and so i thought we fired 500 shots out of it it chopped 10+ balls woth eyes on and shot with really bad accuracy so i thought it may be battery ... changed that fired it the same results then i cleaned it lubed it and same results so i thought it mabe is bad paint is i picked up a stock ION (same air tank that was on vs2) i even turned eyes off on ION it shot with good accuracy speed and didnt even choppe 1 paintball at the same bps as the vs2 so we tryed the vs2 again still messed up turned eyes off ...same results so i just gave up on it and felt sorry for my friends who bought it atleast he got a cash refund.
I only tested it so i didnt own it ive seen them do pretty good the one i tested may have been a "dud" ...based on the one i tested i would never buy one.