I have had this case for a few months now, and I remain pleased with it.
It holds the S2 firmly, yet is easy to remove and replace. You can charge the phone with the cover shut, and access the headphone jack as well. I can 'flip' my case shut, and the clip holds pretty firmly. The screen cover is padded and lined.
I was initially disappointed that the cover did not fold all the way to the back of the case, as this means I have to take my S2 out of the case to put it in my car holder, but as mentioned above, this is very easy to do and you can use the cover as a stand for the phone, which has proved useful from time to time.
Some of the stitching came loose early on and although this was easily solved with a spot of glue, I've dropped a star for this.
I would certainly buy another one.