I will update the durability as I know more.  But suffice to say, this is an attractive sweater.  I bought a small and it fits pretty nicely and true to size.  It doesn't have quite as much of a slimming look as in the picture (I am a fit runner and yogi) and it tends to be a little roomy at the middle.  The picture does make it look more of the slim cut style, but it's classic fit.

For $20 it is far better quality than the Merona sweaters at Target which are comparably priced.  It has a soft feel and looks good.  I will update soon.