Taking the case off, I wasn't impressed with micro, same with the wide lens and the fish eye pictures are just ugly. The only reason I really wanted it was for the wide angle lens, won't explain the 80 dollars investment, with only 30 extra bucks I can can a 50mm nikkor for my Nikon.
It needs to be positioned directly over the phone's camera lens. Cases would create a gap that would make the photos less clear. Also, there is a wide selection of cases available and it would be difficult to make one that was compatible with all of them.