Problems (or potential problems)

Stuff you might want to change for fix...
Performance
Clearly not as fast as DBI itself
But acceptable for our needs
Can always bypass and use DBI if needed
Default Behavior Can Surprise
No easy way to opt-out of retry/wait
Sub-classing is the best way
Retry/Wait isn't very granular
Can't change behavior based on error type
Can't easily change actions without sub-classing
Not Tested on Windows
At least nobody has told me that it works (or doesn't)
Supporting other servers will require some abstraction
There are some MySQLisms in the code