This is interesting, I didn't know about it until I clicked on the Wikipedia link in the description and read up on it. I think it's really cool that Nick Mason wants to recreate or relive the early performances of Pink Floyd - for whatever reason. I'm a huge fan of Pink Floyd's pre Dark Side of The Moon Sid Barret era recordings, in fact I would even go as far to say that I prefer their earlier work from this period.
I won't talk about the music here too much as that is very subjective. Some fans like me will love it but there are doubtless those who will call it a travesty and think it is sacrilegious in some way. I would disagree with those types and defend it on the basis that the members of the band are doing this for no other reason than the shear enjoyment of it. It's great to hear and this must have been a fun gig to attend. I will look out for them in the future as I would love to see them in a smallish venue.
I must admit I was intrigued as to what Gary Kemp was going to sound like doing this sort of stuff. I have to say, he does an excellent job.
If you say this is not as good as the original then I think you are missing the point.
I hope they do more gigs and hopefully another album. I would love to hear them do The Scarecrow.