She's a brick alright, but well worth it. The Line 6 version of the SVT does it juststice but it only models it in the normal postion, no bright settings ect. I find line 6 does a good job getting that sweet spot of each amp, but as you guess, it can't harness the full spectrum of each amp. I think they may have been a biot too ambitious thinking customers would do away with thier amps. I have seen some cover bands use pods and go right into the PA... It doesnt sound that bad, but I am soo used to having my rig on stage I would feel quite odd not having it. My ears are used to having it there too.72 SVT...a classic bass rig. I don't envy the poor sap who has to load/unload it; especially when a flight of stairs are involved.
One of my fav amps that is modelled is the Polytone Mini Brute. Anyone ever play the real deal? How was it?? Also, the MArshall Major is worth a mention. I have a patch that uses the Marshall Major cab 4 * 15" with the SVT Head. PHAT
I also have an SWR combo I use for smaller gigs. I even have an older 66' Vox Essex Bass combo too, but like all Vox's you dont want to be relying on this for gigs. It stays at home and is used in the studio.
I also have the filter PRO... AWESOME.