Been using a Terror Bass live since before last xmas. Played various size venues from small pubs to 500+ capacity venues and some festivals with it. The sound, to my ears is great, and suitable for pretty much everything i do... see my sig Loud with a capital loud, fairly versatile eq, switchable from 4 to 8 ohms, light and very portable.
The only time i've found it to be too boomy is with the Orange SP210 cab on crappy wooden stages, but have just bought a Grammapad, so hopefully that will change. Also used it with a couple of Ashdown 2 x 10 cabs for an outdoor festival, and it rocked.
Nige.