I put a set of Crank Bros. Candy's on my Stelle. After a few rides now I'm sure I have a set of Shimano SPD's for sale.
The Candy's are easy to get in and out of. No need to adjust tension like SPD's. Mud goes right through the pedal without affecting the mechanism. Less moving parts to fail. The platforms are great for riding unclipped. The extra "float" does take a little to get used to though
Cheers, Trev