We've had gel-mats in our kitchen for about 10 years, we bought them from a kitchen products catalog, don't remember the brand.  The first set was constructed with a sort of "woven" look, and were brown. They blended in with the floor and seemed tough enough until recently when they seemed to lose shape and "fracture" in several places. Instant eyesore, but we got 10 years service, so no complaints. 

The Gel-Pro mats have a smooth surface which is very comfortable and the colors in the mat prints go with our kitchen color scheme. They turned a functional product into something that is also decorative. Very appealing! Quality seems very good, so we're hoping we'll get another 10 years of service.  So far they have been stain resistant; spills clean up easily with soap and water. They're nice and thick so you can really feel the difference when standing on them. If you want comfort and style we recommend these mats.