I have a PTR-91 GI and it's been a pretty decent performer. However, like the original models, it needs some work to be a viable SHTF firearm. First the safety is too short for normal length thumbs. However, RTG sells an extended replacement that makes it easier to manipulate the selector lever. Second is the magazine release is a joke to get at without shifting your grip. In order for the HK91 and clones to be legal, the original design omitted the paddle magazine release. You can install a magazine release paddle though but it's not a job for the home gunsmith. One mistake, drill too deep, and now you have an illegal Class III weapon! I just sent my barreled receiver off to Bill Springfield in Colorado Springs to have this modification done though. Once the original paddle magazine release is installed, it's not any worse than an M-14, FAL or AK style magazine release and a modification I highly recommend.