I purchased the Patricia Crocs in black a couple months ago and these are great!  I was seeking open toed Crocs without anything going between my toes, good ventilation that would not result in sweaty feet in the 100+ degree heat, not clunky so I can wear the shoes with a casual skirt, and comfortable enough to walk for miles and miles without any discomfort.  These fit the bill!

I compared the Patricia's and the Adara, but chose the Patricia's since the Adara is much wider and clunkier looking.  The Patricia's have a narrower fit, a heel (maybe 1 1/2"? that provides lots of heel cushion), the straps do not rub at all, and have great support.  I noticed these Crocs have more arch and overall support than the Malindi and Alice, this is probably due to the heel.  The shoes are incredibly comfortable and I can walk miles on end at a fast pace without any problems.  Most people do not recognize these are Crocs, but there is a silver "crocs" tag on the strap closest to the toes that gives it away.

I wear a 6.5 and I purchased a size 6 (this is my normal size in Crocs) as the Crocs will contour and stretch to your feet.  I've heard of a few people carefully using a hairdryer to stretch Crocs straps, but I haven't needed to do this.