The only Sundazed LP I have so far is S&G's Bridge Over Troubled Water. I bought it because my 3 original pressings are all in pretty bad shape. I am waiting for some upgrade parts to my record cleaning machine to see if any of those 3 are salvageable, but if not after a good cleaning, they're on the way to the thrift store.
The sound on BOTW is very close to the originals, and that never was one of the better sounding S&G recordings. I would have to say that the record is better sounding than the Sony MasterSound Gold CD, though, and that CD is the best digital version I've heard.
I'll be buying a copy of the S&G Bookends album soon, but other than that, I don't care much for MONO records and their artist roster doesn't have much else that interests me. From what I am reading on the other forums, though, Sundazed makes a superior product to most of the major labels like Rhino, WEA, Sony etc.