I got one. Its a nice pistol. Almost no recoil and pretty accurate. I took some pics of the 57 and my glock19 so you could see the size comparison. It is only a little larger but it would be too large for me to CC.
Got mine on Gunbroker. You can usually find one for under $1000 including shipping and transfer. Also give CDNN a call. They sometimes have Five-seveNs for $900 or less.