I got one luna pro, liked it so much I got another (mostly to get the spot attachment that was on it). They're good meters, accurate and intuitive, but as mentioned above, not pocketable. I was expecting something much smaller when I got my first one. You don't much notice it hanging around your neck though. It's a little smaller than the screen of an iphone (but obviously thicker).
If you have a soldering iron, you can easily adjust these to use modern batteries. See this video:
Using a schottky diode, I did the modification in about 10 minutes. I now have a "professional" light meter with incident, reflected, and spot capabilities, that uses modern batteries, for about $15. That's hard to beat.
I still have to modify the second one I got. Maybe I'll do that this weekend.