It did fine iff you had a good Kermit implementation at the BBS. Most used the most basic possible version of the protocol, which was godawfully slow, but I did some dialup at the end of the BBS era (93-95) where someone showed me how to use Kermit properly with large packets and sliding windows. It was every bit as fast as Zmodem, though I don’t recall if it supported transfer resuming.

I never used the translation features, though I can think of one particular summer where that would have been very useful (had a 7E1 connection - I got files to my PC by uuencoding to screen, saving the buffer contents to my PC, and then uudecoding them locally).