Honestly, I don't think it sounds like Pink Floyd. Everything after "The Final Cut" was David Gilmour. That's not to say it was bad, though. A lot of the people who gave this album mediocre reviews did so almost entirely because "This isn't the return to original Pink Floyd that we were expecting."
In other words, as a Pink Floyd album, it's kind of mediocre, but without comparing it to their original work, I think it's great.