The gliding characteristics: As a comparison I've since 6 years (old, not the GS-scrap) Ratpad and I can only say that the Speedpad has slightly better gliding. Therefore, so full marks.
Unfortunately, the durability is under all. Despite always current GlideTapes the corrugated surface is already sanded smooth in the middle, which is a disaster for the glide. hab jetz rausgekramt my already five years Used Ratpad back and have to say from the old part I'm still life in terms thrilled.
For durability so only one star, makes insegasamt. 3
Those who do not, however, shy away, every year to buy a new Pas, get the Speedpad a 1A product.