Moment hoots are here.
The case feels premium. In my opinion it feels very similar to rhinoshield cases. However, it does make the phone look slightly bulkier compared to the fabric case. The edges of the case are very high. Using it with the WSD SP, there is only around 1mm clearance at the sides. Button presses are slightly stiffer. The fabric case has more clicky buttons which are easier to press especially while double clicking to start the camera app.
Lenses feel heavy and the mounting feels secure. It's unlikely that the lens will fall out once secured to the case.
Will post some shots of the wide angle lens later. Portrait lens still on the way.