I love my mountain bike SPD double-sided pedals (Shimano M540) with my Keen bike sandals.
I have the tension set very loose and it's second nature to unclip. Have never had a clipless fall.
The pedals don't have to be flipped into position. The cleat practically clips in by itself.

The sandals have great traction while walking or putting a foot down. If necessary I can just put the arch of my foot on the pedal for a few pedal strokes.
The sandals will accommodate thin socks or thick socks with toe covers to be usable in many weather conditions; and they dry quickly even if soaked. I wear them year-round temps 35F-105F.
The ability to adjust width cured many problems I was having with hotfoot and cold cramped toes.
The rubber toe bumper keeps my toes warm in cool weather without making them overheat on hot days.
I also like that I can just slide my feet into the sandals without having to tie knots, adjust straps or buckles.
They have a solid plate on the forefoot but a little flex farther back for a more natural walking gait.
I am careful but do walk inside my house on new hardwood floors and porcelain tile and carpet. No scratches yet.