Joe,
I have both Dire Wolf and UZ7HO's Soundmodem installed and running with UI-VIEW32, as well as some other programs. Both work perfectly. Dire Wolf does require a bit more effort to configure since everything is in a configuration file, but the documentation is extremely clear and detailed. For local operations, I haven't been able to see any obvious difference, though the diagnostic messages about received signals are very helpful, or at least interesting.
73s,
Alan
WA4SCA