Primarily ease of transfer. Probate is a pretty long winded process that can take month to close. A living trust avoids most of that.
Apparently there are some potential tax optimization options as well, but I don’t know how that really benefits my particular case. (It’s definitely why we did it.)
There's an entire financial structure the trust provides with a bunch of benefits. No probate, no will/estate issues, it's not counted as an asset for disability determinations, etc.