-- Last Updated: Feb-06-13 7:54 AM EST --
The Tripper is a fine canoe if it meets your needs. It is a pretty big boat and rather heavy at 80+ lbs. It will carry a big load and has been used in significant whitewater. It might not be the best choice of boat if you plan on doing primarily flat water day trips unloaded.
The description of the boat in the ad is taken from the REI site where the boat is sold. Many boats (Mad Rivers particularly) have hulls with a shallow V cross section, but the Tripper has a shallow arch hull as noted. Old Town describes the hull as having "a deep V entry".
Some people feel Royalex degrades over time and becomes brittle. Maybe it does sometimes, but I have quite a few Royalex canoes this old and older and have not observed this problem. You might ask the seller how the canoe has been stored.
Some folks find the Old Town molded plastic seats to be uncomfortable. They are heavy relative to ash framed seats. Replacing the thwarts (if necessary) and seats would not be a terribly expensive proposition if you choose to.
When comparing the price of a used boat with a comparable new one you also need to factor in sales tax and often a delivery fee charged on new hulls. Seven hundred dollars is probably more than I would pay for this boat, but if it meets your needs I don't consider it an outrageous price.