I have this Verve Master Take set. I really like it! The sound is very good, not scrubbed too cleanly, but with a full sound. The notes are also good, taking the session by session approach and using (I believe) the relevant text from the complete Verve box set for each session. Nice presentation and artwork and photographs as well. A lovingly done set.
I sort of differ from Claude in that this may well be a good starter for Bird. The variety of settings shows his genius off to good effect, and the sound is better (from the source) in some ways than the Savoy or Dial or live sessions will be. It may serve as a more accessible entryway, and I agree with John that of any body of work of Bird's the Verve's may be the one to skip the alternates on for a while. If you get this set, you'll learn a lot about Bird, hear a lot of good clear Bird in a variety of ensembles, and if you get the "bug" hard (I suspect you might) you can then move to the Savoy and Dial sides, the various live collections, and revel in his magnificent work.