Has anyone ever used these shoes before. I seen them on the website. They look good, but how are they? Are they comfortable? How are they on a wet lawn (hills)? They are about 80 bucks, and before I take the plunge I am looking for suggestions. I use an old pair of tennis shoes every year, but they arent waterproof, and by the time I use them for work, they have no tread. Any Info helps..