I thought QPR was great also.
Really enjoyed The Cosmos Rocks and while Brian was also busy at that time with his PHD thesis I still think he laid down some very tasty guitar work on that album.
Understanding that PR was never going to sing Killer Queen live (and other Queen songs songs like that) he did a great job on the rockier songs and also did surprisingly well on emotive ones like The Show Must Go On.
Would really have liked QPR to have done a 2nd album together and really worked on it to the best of their ability instead of piece meal as I understand The Cosmos Rocks was done.
I saw QPR in San Diego on Apr 1, 2006 and loved it and although they were playing all old Queen, Free/Bad Company songs I had the feeling I was seeing a new artist. Also saw Q+AL in Houston in July 2014 and while I enjoyed the show it felt like it was a tribute show.