If you have GNW Shino, he's really cool ^_^
Shino was my clone-go-to-guy before GNW Kiba. Shino has the added bonus of the interrupt, but it's only useful when he's across from someone where he can interrupt (no clones).
That buff is pretty neat but not really useful if you use him as a tank and he's meant to just stand around and take jutsu and attack every so often.
The leech is pretty good but not worth it against better chakra recoveries/chakra stealers because it's only 10 per hit (unless it's against Lightning Armor).
Overall the worst thing about him (for me) is that he has practically no chases. It's difficult to organize a team around only a 3-combo chance.