I have knee issues and find float very important, as is initial adjustment. It's pretty easy for cleats to not be adjusted properly, and I get pretty bad knee pain if it's not in certain range (fortunately this lets me know what adjustment is good

For commuting I still use SPDs, but will probably switch back to quill pedals and toe clips... maybe even for touring too. Purely aside from knee issues, I prefer the versatility in footwear and clipless pedals really don't add anything to my commute. I think the semi-default logic of "must be securely fastened to pedals" is faulty. I mean I do love clipless and I've been riding them since they first came out, but there are a lot of advantages to plain old platform pedals.