The O'day is a good beginner boat...a "family" dinghy, if you will...nice & stable, as dinghies go.

Translation: Not the fastest dinghy out there, but still take nothing aboard that you would mind if it gets wet. It's not IF you'll suffer a knockdown & go swimming, it's when.
Damn, I miss our 15' Mutineer...gave it to our daughter when sailing became too much for Cindy. Then our daughter never sailed it, just sold it!