Well, I definately have a story regarding this mech and I think Savage Coyote has told it a time or two. Most of the points I would address have been mentioned, but I want to point one thing out.
Normally we say Clan mechs are under-ammo'd . . . the Clint IIC is not, even allowing for slug and cluster, four tons is a bit much IMO. Using the 4th ton for something else always seemed to make sense to me. My character fought his way through most of the Refusal War with a Clint IIC- per the fluff it was Wolf replacement gear so IMO ideal for Tau Galaxy . . . especially with what my character did to pass his Trial of Position. It survived until I traded it in for a salvaged Black Lanner. Not sure how many kills I got with it.
For Wolf it will really shine against Ghost Bear and especially Hell's Horses combined arms formations. Less effective against the Falcons, though the chuckles of shooting down the birdbrains applies.