I've been riding Schwalbe MW for 3 seasons, and Ice Spiker Pros for 2. The MW are fine for the type of snow/ice in your picture. They're not so great in deeper or rutted snow. I ride my MW on most days when there's ice or packed snow (maybe 90% of the time), and the Ice Spiker Pros on my MTB when it's really bad (10%). If I had to get only 1 pair of studded tires, I'd get the MW. They're good all-rounders. In deep snow, nothing works all that well (although I admit, I've never tried a Pugsley or other very fat tired bike). In short, I don't think you made a mistake with the MWs if your primary goal is commuting on snowy roads.