Stones mono box set thoughts on audio quality

I have the Stones mono vinyl box set.   It is wonderful.   very happy with the set.
  sound quality varies from album to album but overall its better than I have heard before.

I haven't read any of the reviews on the box set.

Just how "authentic" was the source material? 50 year old tapes....

Spidey sense says I would be reminded of why  I gave up on buying  reissues...meh. If I want perfect background music, I play the CD's. 

My original mono's aren't perfect.Thankfully, they are very listenable. Very difficult to find them in the bins nowadays, unless you want to fork out the ca$h.

BTB and LIB are my faves. Always played LOUD.

I got the mono cd box on eBay at a great price, while it sounds good I prefer the sacd Stones.

^^^^^ I did....wanted to get some real world insight. 

You may check Michael Fremer's site Analog Planet for a review of the LP set.