I think this is a great set, particularly as it contains albums that have historically been difficult to get hold of. The sound quality is good, but the pictures used on the CD sleeves could be better quality.
The one obvious missing album is Live in London, but this is a copyright ownership issues that does not seem close to resolution at this time.
My only concern with this set is the fact that I was stung for £25. import duty when it arrived, but all things considered it is still pretty good value.