We had an issue with the first Sink.  It had a hump 38s  of an inch in centre of sink. It could not be installed, there was a risk of improper seal or breakage.  We contacted customer Service.  We were surprised at how helpful an online company could be.  We were under a time crunch, and noticed it was not shipping quickly even though we were promised it would be here by a certain date.  My husband phoned back and item was shipped very quickly.  It arrived as promised, and is in perfect condition.  Wayfair could not have been more helpful.  We are very happy with the sink and the service.