For black and white copies, I would say that the quality is very good. Some of the very fine detail is missing when compared to the copies provided online at Beinecke; however, for the most part where not faded away the text is legible (it also helps to have a magnifying glass).
There has been an ongoing effort to have a professional color quality reproduction made of the original at Beinecke. There is real concern that with continued handling and the natural processes of aging that the color and text of the manuscript is fading and will lost forever. At this point we rely on whatever sources of input we can obtain. Best of luck in your efforts to unravel this most mysterious of enigmas.