Fair enough.
Rails still looks hopelessly monolithic to a perl dev though - we can't quite see why you'd want to ship a DB library in core when, hey, web apps don't -all- talk to SQL databases.
As for the quality of said DB library, well, many smart ruby developers have torn it to pieces quite adequately so I'll just say "google is your friend" and not bother with a half-informed opinion of my own.