I've tried a lot of slings over the years and spent a tidy sum of money in the process. No matter how cool I thought the sling looked, in function I always found issues that prevented me from keeping it on my rifle.
Savvy Sniper has been around for a while, they're not a new company. As a matter of fact, their slings pre-date bigger names in the industry that copy many of their features - I won't name names as my intent isn't to defame other brands.
I decided to give their high-end sling a try on a new rifle build I completed. So I ordered up their top of the line sling with all of the bells and whistles to see how I liked it.
http://www.youtube.com/watch?v=Ny5b7VXUU78
Let me know if you have any questions.