I've just tested with MC30. I see some odd behavior also.
After inserting a CD, MC doesn't indicate anything. Even when System Preferences > CD & DVD > Music CD is set to use MC30, still nothing happens.
But you can go to drives and devices and see the disk right there. Clicking on that disk gets weird quickly. On first click, unnamed tracks appear. Then, in a second or two, they disappear and stay gone. The empty pane says "no disk double click to refresh". Double clicking might do something or it might not. My last trial I had to double click 3 times to get the tracks to appear.
Now I have a list of unnamed tracks. If I click "update from online database", I get a dialog with a selection of possible matches. When I accept one of these, the metadata is applied.
Next, I click the RIP tracks button up top and .... nothing happens. That's because MC has now opened a tiny new dialog at the lower left with "details", "Options", and "RIP".
Finally, pressing the Rip button on this new dialog, the rip happens. When it's over, the disc ejects (as per the options that were set) and the media is automatically imported into MC.
This experience isn't nearly as smooth as what I'm used to with ripping. I would probably use MC's ripping tool if it didn't require as much effort on my part and seemed more consistent. Particularly the fumbling with the disc contents appearing, disappearing, and appearing again after several cycles of double clicks.
It's not the MC's ripping isn't technically good. It's not that MC's ripping isn't well integrated. It's both technically good AND well integrated. The issue with MC ripping is that it is awkward and requires a lot more user action than other tools I am used to.
Brian.