This belt works as advertised.  I am using it as my work belt and the flip design in the buckle works like I thought it would and it holds very well.  The leather is thick and should handle long term use and wear well.  I am happy with the workmanship and the belt buckle was protected by a thin plastic protective sheet that I removed as soon as I took it out of the package.  Many flip belt buckle designs have a detent that keeps it in place.  This one doesn't but it isn't really needed so no complaint from me.

It's coming up on three years and this belt is still going strong.  I have absolutely no complaint.  My guess is the people with complaints either received a defective belt or did something to damage it.  Or maybe Calvin Klein changed the source of the leather.  I wear this about 35% of the time.  This is for my work and not on weekends.  I also only wear it in the cold six months of the year or when I need to put on a dark suit for a formal event or meeting.  It has lasted and shows minimal wear and still looks good.  I wanted to update this review as I am very happy with this belt so far.  Also, my wife likes the belt when I wear it.