I rate them very well, thank you for asking! No really, I have yet to play one I didn't like, even the flipperless, which isn't really my thing, but I love 'em all because someone took the time (and love) to build them and playtest them for us to enjoy. Sure some 'play' better than others, the older ones are slow compared to the newer ones, I agree, butthey required alot more skill with them so they are still fun.