I liked the model 10 (I had a 6M and 10). But I found the grip to be too thin for me. But pistol (GISS) is awesome to shoot, good trigger.
I rate them higher than the FWB65. Never could get along with these. Awkward cocking and heavy at the back and no weight up front. If you can, buy one.
On egun they go for E300 ish Id estimate.