I used one in my group's tournament the last few months as part of my base force. The Timber Wolf (ahem) C is a great platform, the only complaint as far as weapons is placement- I do not like having both the ERLL in the same arm. I use the C a lot b/c its slightly cheaper in BV than the Prime but has a lot of the same weapons load. When playing a Clan force in a 5k pick up game, the 3/5 Timber Wolf C is a nice addition at 3k. Let's look at the weapons load-
2 ERLL
UAC/5 w/20 shots
2 LRM15 w/16 total shots
ERML
AMS w/24 shots
and it cools 30 heat, weapons alpha is 42
So, 25-22 hexes you can run and fire both ERLL. 21-16 hexes you can fire both ERLL and a LRM15 while walking for no heat gain, or gain +1 or +2 for running/UAC or running & UAC/5. Drop under 15 hexes and you can fire 1 ERLL, both LRM15, the UAC/5 and ERML with the AMS on call and gain no heat while running. Double tap adds another point of heat but easy to deal with by minor adjustments.
I lucked out, and my UAC did not jam until the last game of the 2nd round of fights. Lol, but in true Ultra AC stories it jammed on the 1st turn of double tap! Raises a question about dumping ammo that is located in a arm but I have not pursued the rules question.
So the Timber Wolf C is a very good bracket firing machine and with judicious use of the LRM ammo you can get a pretty heavy throw weight for around 9+ turns . . . by which point you are usually happy your LRM bins are empty.
Dak's C
Ogre's C
Not sure I am a fan of the rotary-style AC for the C, but those were the two images I found that showed the C best as minis.