These really appeal to me, i like to ride with my legs as straight as possible, and to be able to reach the floor whilst seated must be handy. I also like to sit upright - and enjoy seeing the world around me!
I used to run those all-cream Fat Frank tyres. You'd think they'd be a nightmare with dirt, and they do spoil easily from the purity seen there, but once tainted they hold it like the proverbially aged fine wine. They're also available with brown tread, which hide mud well, and i'm currently running an all-brown version due to the current conditions.