As a framer, I find it quite a difficult sell to convince people to use NR Artglass. It can often double the price of a frame-up, and most people begrudge paying 80 quid to frame a print that they think was expensive at 40 quid!
One thing to bear in mind, NR isn’t going to protect artwork like museum glass, but museum glass is even more costly.
If you’re after preserving a valuable piece in a well-lit area, NR will help, but try and get the UV stats off your framer for the brand he’s using… But good luck with that though, most suppliers can’t seem to get that information as the products change so often!
I have an example in my showroom framed half with standard and half with NR glass, the difference is incredible… I generally advise people to use it for its non-reflective properties rather than its UV protection.