"Is a soft brace really enough?"
If your ankle feels steady and it's your toes that drop, yes. That's the one job ClearStride does. If your ankle rolls side to side, keep your rigid brace.
"Will it work for my stroke, MS or back injury?"
Foot drop has many causes, and ClearStride doesn't treat any of them. It lifts the front of your foot while you wear it, whatever caused the drop.
"Can I wear it all day?"
It's made for daytime walking. Most people build up over the first few days, then wear it from breakfast to dinner.
"What if it doesn't fit me?"
You get a full refund within 30 days.