I have in the past 3 weeks added more than 800 CDs to the B2. My idea of 'good enough' is that the artist, title and track names are correct. I decided that if I find a jpg file for the coverart even if different from my copy, is good enough. I did not want to leave any blank. I think this is because I have been using two Sony 400 disk jukeboxes so my CD cases have been in boxes for years! If you want them perfect, you may be able to modify my approach but it will take you more time.
I rip each CD on an external drive on the B2. I verify track list and coverart. If those are found, away I go. In many cases I would find the coverart to be missing. In these cases, while the ripping is on going I would google the album. I would eventually always search for a Discogs entry (musicbrainz never showed up) and select that. I would look at the options available and click on the picture. When the picture popup in a viewer I could right click on it and download it. I would place all jpg files in a directory called CDS. At some convenient point I would click on the album on the right side and then on the part above the track list and use the tab on the left called "Upload", select the correct file and send it to the Brennan. I now have coverart for all of my flac files.
My wife handed me her collection, what a mess. She refused help or advice. Now I have CDs with no cases, homemade CDs, and probably a bunch of mp3's. I learned by accident what was mentioned already, some rippers on the PC do better identifying the CD so I will have to transfer back to the B2 when I get those done. I'll follow the same kind of rule set.
So the short answer is I name them immediately after I rip them.
My answers may not be directly correct. I have yet to determined how to separate out Christmas and the wife's collection so my mp3s will be easier to sort out. I preceeded the album name with "Xmas - " and "wifename - ". I am adding those categories to play lists as well.