We ordered 3 sets of the Seraphina dinnerware set and are thrilled with them.  They are heavier but not too heavy.  They have a cottage effect, yet with the lace-like trim, appear quite formal when set on the table.  I love the size of the mugs because it is bigger than a teacup and most of us like the larger mug-like effect when we enjoy a beverage.
One of the sets did arrive broken; however, Wayfair very quickly took care of the matter when we got in touch and the dishes are being replaced promptly.  
I have shopped through Wayfair for a number of items and the pros far outweigh the cons.  Thank you Wayfair for your excellent service!