We have a number of stores running the RMS-TD Bridge software, and I have very few issues with it. I haven't heard any complaints from the end users.
The only real problem I have ran into with the RMS-TD Bridge software is when you are coming out of offline mode and have been processing payments while you were offline; the software is putting a bad ID value into the TenderEntry.VisaNetAuthorization column, but this is easy enough to fix with an SQL query that sets the values of that column to 0.
They actually just recently released a new version of the TD-RMS Bridge software, although I have not installed it yet. Apparantly the new version fixes that VisaNetAuthorzation issue, as well as a few other workflow issues.