In my group, we have a few of the Jotags and have been very pleased with them. The newer ones have foam filled wheels which completely eliminates the flat tire issues. The gunwale supports are well worth the extra $$. However use loctite when putting on the acorn nuts as they can come loose. I will also say that the folks at Jotag are exemplary. When I lost a couple of the white bushings on one of my gunwale supports because of the loose acorn nut, I reached out to them. Even though I wasn�t in urgent need they told me they would take care of it and had a bag of two plus two extras sent to me gratis� directly from Argentina...They arrived in about 3 days. Now that is customer service.