Well, I've been using Cinccino pretty often and I'm rather impressed by its viability. Cinccino is a wonderful attacker thanks to that Skill Link ability and plenty of attacks that make absolutely no sense flavor-wise such as Rock Blast and Bullet Seed. The set that I'm using is:
Cinccino @ Life Orb
Trait: Skill Link
EVs: 252 Atk / 4 Def / 252 Spd
This set is very straightforward: Outspeed just about everything without a Scarf and select an attack. The only drawback to this set is Cinccino's woeful Base 95 Attack which all too often leaves its enemies with just a sliver of health, enough to take out Cinccino with just about any attack. Life Orb mitigates this problem, thankfully, so Cinccino can boost its Attack to respectable levels. Choice Band is tempting since Cinccino seems to need all the power it can get, but Cinccino's attack diversity is just as important as power and Choice Band locks Cinccino into one move per switch-in. Life Orb is the way to go.
Tail Slap is a wonderful attack. Think of it as Return, except with 23 more Base Power and the ability to break Substitutes and still attack. The only drawback is the 85% accuracy, especially since a miss often spells death for Cinccino. Bullet Seed is a great attack for bulky Waters, and it's also the only multi-hit attack that hits 100% of the time. Rock Blast is for Flying-types mostly such as Zapdos and Togekiss, and Fire-types like Chandelure. U-Turn is absoultely filler on this set since it's not affected by Skill Link, not boosted by STAB, and costs 10% of Cinccino's health to lose.
Cinccino is useful in this metagame because it's fast and can attack with three different types. 115 Base Speed is monumental in this metagame, typing with Raikou and outspeeding everything in UU besides Raikou, Azelf, Ambipom, Weavile, and Crobat (it ties with three of them). If an opposing team is weakened, then Cinccino can usually just Tail Slap the opposing team to death. Super-effective attacks from Cinccino almost certainly result in OHKOs. The only problems with Cinccino is that it has middling power and nothing to take care of Steel-types with. Technician Wake-Up-Slap is definitely usable, but on average it will make Cinccino's multi-hit moves weaker and lowering Cinccino's average power, even if sometimes it will hit with almost 200 BP, is not worth adding a 90 Power Fighting-type move that won't OHKO steels anyway.