I have them, and they're amazing. I have pretty cool LED lighting in my apartment and can make my whole living room any color I want at night. If I set in to pure blue and put on the glasses, it's like being in pitch blackness (except a couple of items glow brightly).
It's not like looking at things with an orange tint at all, even though the glasses are obviously orange.
That being said - the benefits I get by using them is amazing. It's weird how much of a difference it can make, I get tired quickly after putting them on in the evening. If I forget to put them on I usually end up staying up too late, getting too little sleep and often ruining the next day. Personally I find it way more effective than flux.
By the way - blue light isn't just a negative thing, but also a huge positive. In the morning I use a Philips goLITE BLU HF3332, and it really improves both my energy and mood quickly after just a few minutes of usage.
Those two simple items, a blue light and a pair of blue-blocking glasses, have improved my life significantly. Try it out (especially the glasses, it's just $9).
It has made a noticeable difference!