If you want to get it all in one whack, that set is probably your best bet. There are other releases I think might sound a bit better on cd, for example all the Bird material that Savoy/Denon Japan released I personally prefer for Savoy, but that's a lot of discs not assembled in a set, and does not have the Dial material. The Spotlite might be the best way to go for Dial.
In my opinion now, decades after scurrying and collecting the material, the differences in most of the releases is not VAST and for listening and studying and enjoying Bird most will suffice. . . with that Atlantic/Savoy set probably the most sensible score.