I assisted a friend when he remastered that album and my website is listed in the mastering credits.
He gifted me an acetate cut with a 8-watt 300B tube amplifier. Although the acetate has a very limited life, the sound quality is darn close to hearing the master tapes when I visited.
I was told that most remasters are unnecessary and are only done to either extend the copyright or as a marketing gimmick to resell the music. Do you find that to be the case?