I like them.

I wear a size 8 to 8.5 so ordered an 8 in these - the fit is excellent.

The insoles are removable so you can use your own insoles in these - added bonus.  Also the heel area underneath the 'factory' insole is built up some to provide extra cushion in that area.

I bought these to use outside in the garden when it is a little too wet so I don't mess up my better shoes.  They are a smooth design that should keep my feet clean for quick times outside, yet are a solid design so as to not allow my feet to get dirty and need a foot bath before coming in the house.  As well, these shoes will spray off easily when dirty.

Update:  These work well for my intent - keeping my feet and other shoes clean yet still being able to get in the garden when its just a bit too wet; however, they are made to stay on the foot and therefore don't quickly slip on and off like Crocs do (like when needing to run back inside the house for a quick minute) but require an assist.
Support-wise, they seem to be a good choice.  I have worn them for hours at a time already and would definitely notice if the support was lacking.
Adding socks is a good idea - my size selection is still perfect with the addition of socks.
Still happy with this purchase!