Sound Juicer is part of the Gnome software collection and is the default CD ripper for Gnome Shell.
Ranked in these QuestionsQuestion Ranking
Pro Uses MusicBrainz
Pro Nice user interface
Pro Default FLAC support
Sound Juicer supports ripping to FLAC out of the box with no need for other files.
Con Can't control bitstream and sampling rate
These are properties of the file, so you get what's there - an exact digital copy of the material on the CD. Changing these means editing the file. The most common sampling rate is 44.1K samples/second with a sample size of 16 bits. Unless you're dealing with studio masters, which are often recorded at a sample rate of 48K samples/second, there's no advantage at all in upping the specs on a file which was recorded on CD at 16/44.1.
Con Limited preference settings
No option to choose mp3 bitrate.