Are they outstanding - as if the master tapes have not aged a day?
if I may just jump in briefly to say while I didn't know the Euphrates River album from a hole in the wall, I'd become v.familiar with the Tower Of Power Quad thru falling in love with the SQ LP the last 18 months-ish of SQ madness and having heard both the SQ in decent nick (after 3 attempts, LPs 1 & 2 = atrocious quality) and the Q8 (converted by the best of the best) I can wholeheartedly say the SACD (while I've no idea if its anything like the master tapes) is a triumph imho and sounds wonderful = its got the Q8 discrete surround with superior sound to the Q8 or SQ.
edit: I'll add (I nearly posted to this effect in the Poll thread itself but hesitated since its a Poll) I am rather disappointed by the lacklustre response in the Poll for the Tower Of Power SACD (apart from my own opinion that 6's & 7's seem a bit low for a release that's a splendid sounding reissue of a Quad that's been out of print for 40 years and can be readily found at a bargain price but if people really dislike the music/mix that much, there you go..) anyway I hope as U.S. QQ members' DV order packages are finally starting to arrive more people here will contribute and vote in the Tower Of Power SACD Poll and hopefully balance out the votes somewhat cos right now its kinda looking like a pretty mediocre release and imho it is anything but that, its superb.