Got these for the heck of with another set and love them. They're a little harder to read than the others, but easy when they're glowing and it's dark. I laughed the first time I got them out, not sure why, but I did and now I freaking love these things.
I am not sure if I didn't leave mine in the light long enough to verify a strong glow. It's a gimmick but fun none the less. We don't often play games with the lights off.
The numbering in the orange rice is the reason I went for them very easy to read even for me with readers.