Nothing I have used compares, although I'm not big into semis.
Marker Setup:
1995 Thruster Ready Vector. Gas thru stock with WGP regulator.
Recommended Upgrades:
stock, regulator.
Strengths:
This gun is great. It is really consistent, turns heads at the field, is very accurate, has a very nice trigger pull, a great stock barrel, doesn't really need upgrades, good rate of fire, and a very reasonable price. This is by far the best gun for under $300 and compares favorably to the higher level guns. You can get an aftermarket barrel from BOA, but you don't need one.
Weaknesses:
This gun is very loud, but that's not a problem for me. Who cares if they hear you if they have already been hit by the paintball? The only problem I have with the gun is that it is not very efficient. It also leaks out the 4-way a little, which adds to its inefficiency.
Conclusion:
It's a great gun. If you can get your hands on one, buy it up! Best value I've ever seen.