It's pretty hard to find slide-type sandals for men (unless you're looking for leather, which I was not - I wanted more of a technical sandal) and these fit the bill nicely.  The versatility of being able to rotate the back strap up for slides or down for behind-the-heel security is icing on the cake.  I've used a number of different sandals and the design on these is tops because of their versatility.  They are also very comfortable and the soles are really nice and grippy.  Some of the other reviewers have reported the back strap breaking, and since mine are pretty new I'll update my review if I have any problems.  Until then, these are an easy 5 star pair of sandals.  Oh yeah, found them for $9.99 on winter clearance at a local retailer.  Nothing feels better than a good bargain!
***5-29-12 Update*** With the advent of warmer weather I've had more time to wear these for extended periods and they've done great.  Spent a whole day on my feet at an amusement park over the weekend, switching back & forth from water park activities to dry walking, and these were comfortable all day.  I've had some sandals in the past with areas where the straps have rubbed blisters or caused discomfort, but these wear really well.  Very happy with them.