I've had my LUK Cerametallic for over 40K miles so far - primarily used in RV towing. Absolutely no problems, and as I recall, it was claimed to hold well over 600 HP and 1000 Tq at the time I bought it. It was about 1/3 less cost than competing clutches at the time I bought mine, and I've never had reason to regret my choice. My power rating can be seen in my sig.
It is a very positive engagement clutch, as most of this type are, but not excessively, and decent to control. If heavy use and excellent holding power is needed, this will work well - if a street-only clutch is needed, something smoother and less aggressive might be better - Gary Croyle's company has excellent selections to choose from, as well as the SBC outfit.