We have both types in our sailing club and both work great. The Cat Trax have proven themselves to continue to work for years with little to no maintenance. Most of the time you don't even have to worry about putting air in the tires. Their are a couple of neat features about the Euro Trax though. 1. It breaks down to the point that it would actually fit in the trunck of your car. 2. It's easy to adjust them to fit many types of cats. Which means if you ever upgrade boats you don't have to get a new set of wheels.