Nice, but not pleasant
The mouse pad does its job well and meets the criteria. However, as it is really thin, it doesn't have that foamy texture or "woven" coating (compared to a Steelseries QcK+ for example) which are quite nice.
For the Sphex Mini, the texture is quite hard (obligatory, considering its thickness) and looks like plastic.
As a result, the glide is not very pleasant and depending on the material of your desk and the glides of your mouse, it can make some noise. Way too much noise.