I give 5 because it's a helpfull board. But you need to spend some time to get a good result. Adjust R, G and B, change to english, try different resolutions and adjust screen. Before the CRT in my After Burner Deluxe burns or explodes, it make a lot of scratching and ticking noise, I better use a 4:5 TFT and this nice converter.
This little guy was set up in no time after I followed the instructions how to change language :D
Wiring is very simple but you will need some solder skills.
I've tested a few PCB's with different frequencies and all worked.
Nice thing to have for testing purpose.
It does exactly what it should do but it jitters a little while it does it. It can be reduced a little through the menus but it's always there. If you're not sensitive to that kind of thing it'll be perfect for you.
Recommended. I'd like to give it 3.5 but I'll be generous and give it 4.