Fingers is pretty good. For 9 SS he's got a solid defensive profile, he's quick, and while Chatty isn't quite as debilitating as it used to be, it's still certainly a nuisance, especially later in a turn when an opponents control hand has dwindled. No resistance poison in a 6" pulse (with the added potential of card draw to boot) is appreciated, he can either self heal or steal scheme markers as fast actions, One More Question for Slow and possibly a lot of damage is nice. Honestly though, his Have a Drink is where I feel like he can really shine. Besides the ability to Pilfer SS from your opponent, the built in trigger A Small Favor has so many potential uses, from having your Fermented River Monks get more Poison and a free swing, to securing Deliver a Message's second portion via beating the enemy leader with their own beater, to even just repositioning an enemy model outside of their own engagement range to keep another friendly model alive, the possibilities are what make it so good.
I'm not gonna say he's a perfect model, but he does facilitate a lot for the Tri-Chi, making it easier to complete your goals as well as hinder the opponent's. Cheers!