I have a viper-SS. It really is great. It would be nice if they had a few hooks on it so you could hang stuff or attach things. I took a multi-pocket camo belt I got from Wal-Mart and a bunch of cable ties, and tied that onto the front bar so I could have everything I need organized. That worked out well, but I think I'm still going to attach some hooks to the inside middle side bars to make it easier to hang things. My only complaint is the safety harness, which is ridiculous. A friend showed me how to make a simpler harness that I can put on my chest and that's what I use.