He's solid. Feast helps grab neutral creeps with lower chance of them getting stolen.
You may find your damage a bit lacking compared to other characters, so you really need to work with your team. --- "It's like racism, except to only one person." -Todasmile Looking like a nerd is a small price to pay for ultimate power.
Cho's a pretty solid ganker in TT's jungles. His W does his solid damage with some serious silence and Q does pretty well in the early levels where they'll be moving slower. His Q remains useful for cutting off enemies in the jungle and his ult is devastating in a 3v3 situation...or at least moreso than a 5v5.
However, I would only recommend him if your two teamates are good dps or have short CDs because his are fairly long, but fights are so quick and brutal it may not matter. He makes a good jungler too, but makes fairly bad use of Lizards IMO. The move speed boost is great though. --- XBL GT: NinjaKangarooo ( http://www.youtube.com/watch?v=lUqOUGlqsc8 )
He's solid in 3s with a DPS build. Open Ruby Crystal for the level 1 teamfight, grab Phage then build Starks. If the game goes much longer than that, you get Mallet. Extra damage from Vorpal Spikes can really add up to a surprising amount of damage.