I have shot one before, the controls were very easy to reach with my grip which I really liked. It was a 9mm varient with a stainless slide, overall function was good and I remember mags were very easy to insert upon reloading.
Not much feedback, but some, it was only 100 rounds a couple years ago..
Would I buy one as a long term range gun?
probably not, they are nice guns, but I think there are better choices out there, especially ones in which parts are easy to aquire. I have heard very good range storys for these guns in which they feed anything, are reliable and accurate, so if you do choose it its certainly not a poor choice. Just not my cup of tea.
If I had a crapload of cash sitting around I would buy one for the novelty of it, probably the usp tactical, but again just a novelty.