I've done it. I like to play him in the jungle
I start with E, Max E, start with machete+5. Usual route wolves>Blue>Wraiths>Wolves>red>Wraith>gank
With a leash he should have good health to gank. His stealth is really nice when ganking. Before 6 he doesn't have that "ganking power", after 6 he has his ult(It's nice but has a kinda long cool down.)
I like to get wriggles in him. Last season I was going Wriggles>Dorans>Dorans>Mobility boots>Frozen Mallet. HOWEVER, this season I like to build him with black cleaver and last whisper (Penetration too good), buy a warmogs if tankyness needed.
I'd like to pick him if your team already has CC.