Hunter is pretty useless. Space Cowboy is just a stuffty mineguy. The grappler is just bad and it's tried to be made up for by giving it a shield. Powerhouse is fine except it can heal itself, mineguy is still annoying and the mines seem to take multiple shots to blow up. Grenadier and Jim are about where they should be, but Jim's charged shot is essentially useless, would rather charge it up and then the next time you click it fires the charged shot, damage isn't good either.
Preferred the classes before the current ones.