I bought a copy of The Band's Music from Big Pink from Better Records and it blew away my MFSL version. I have purchased several other titles from them that had no half-speed master version that were likewise much better than I could find otherwise.
It was particularly difficult for me to find Fleetwood Mac's Future Games in either LP or CD format that didn't sound muddy and veiled. I found one on Better Records which was much better than my three LPs and two CD's of the title.
I couldn't afford their prices for everything, but they definitely do what they say they do.