Crocs are the ugliest shoes I have ever seen. The Croc Mary Janes are still ugly shoes, but they are slightly better than the regular Cayman model. Crocs are also one of the most comfortable shoes I have ever worn. I wear them without socks and its amazing. My feet do not stink, and they are not sore. I go to school 2 hours away from my hometown, so I make 2 hour drives often. These shoes are the best for long drives because my heels don't get sore and my feet do not get restless.
I do not think they look so bad when I wear them with brighter colors and jeans - it also helps that the sun is out I guess. The Croc look is very different and one should be prepared to go out with them in public. You WILL get nasty looks. I have one Croc charm on my pair and everytime I look down I can't help but giggle.
I do still sweat in the shoes, but because of the holes around the shoe, the sweat is not bothersome. They are easy to clean, I just throw them in the sink and run them through water.
They also look adorable on toddlers.