My thoughts exactly. I even downloaded the most popular iOS7 theme from cydia and the look (which matched all the screen shots I've been seeing) was so gawd-awful, that I deleted the theme and welcomed back my stock icons.
I highly doubt some cydia theme is going to replicate iOS 7 exactly, so using that knockoff will not be a good representation. I didn't like iOS 7 from the pics, but after using it for a week, i like it a lot more than iOS 6