This is a very attractive looking shoe and comfortable too!
The shoes are backless and slip on easily, but due to the interior molding they hold my feet securely without slipping or sliding off.  I've worn these shoes while driving and they stay on securely...I've worn them while walking and they are very comfortable and supportive. I have over-pronation so support is important.
My only negative comment would be... if you have wide feet, or feet that tend swell, these shoes might not be a good choice for you.

05/07/2014. Thought I'd add a note to my original review since I recently purchased a second pair of these Merrell shoes.  I love these shoes! I've recommended them to all my friends. I wore my original pair (purchased 5/2010) all the time and they held-up really well. These shoes are very comfortable and supportive, plus they look great with jeans or slacks.  I highly recommend them!