I didn't wear them in the park but I own a pair. Anything with a softer top is an A+ for me. I wore gowalks and my frees would be my other pair to bring if I had had them when I went. So I would say go for it!
The soft top really helps prevent blisters IMO. Shoes that are too structured rub on me a lot when I wear them ALL day, even if they're well broken in. And they're light which is excellent, foot fatigue happens much faster for me when I feel like I'm carrying around the shoes I'm wearing like they're weights strapped to my feet. The lighter the better.