I've paddled The Mad River Adventure on 3-4 occasions. It is a great canoe for the price. It is faster and tracks a little better than its counterpart, the Old Town Saranac 146. It is not quite as stable however, as the Saranac, but stable enough. Between the two you can't really go wrong either way, but I ultimately went with the Saranac, due to its more stability and more storage.
I was looking for a canoe I could take the wife and two kids (2yrs, 5yrs), and the added stability, storage space/seating of the Saranac outweighed the better tracking and speed that the Adventure offers. The Adventure is made out of a hard plastic material vs fiberglass with the Saranac, so I would say the Mad River is more durable. But my Saranac has held up to quite the beating.