If it's the Yashica EZ F521 you're referring to Brian, yes I have one. It's a great POS
Many years ago I had a Diana. My first photography course in college required that we all only use The Diana. Unfortunately, it is long gone, but one of my favorite photos is still on my wall...it was taken with that Diana. Ah, memories.
Frankly Brian, if that design you've linked us to, that camera looks very attractive to me.
But I do often shoot with a lensbaby, which is as close as I can get to Diana and Holga without shooting film.