Impressed
Okay, this is only a week old trial, but based on that I'm impressed!  I bought mine also at costco ($39).  I have used it on my hands 2x a day, very lightly as directed (at this rate, it's going to last me a long time.)  I am a runner, and I neglected my hands with the sunscreen, so they are covered in patchy red/tan spots.  My hand look old!  I started on Monday evening and this is friday.  There is a very noticeable difference.  The light tan spots are almost gone, and the blotchy red ones are WAY less noticeable.  Now, I haven't gone out in the sun since its winter and I wear gloves.  The test will be on vacation, but I'm hopeful  I have 2 spots on my nose and one on my cheek that I just started using.  It remains to be seen if it will work.
Rating: 5 stars