It looks very nice, and the parts appear to be well made, should get years out of it.  However, the backup valve body nuts are very hard to tighten in the small space under the sink.  It would be a little easier if the nuts were the kind with the wings on them for griping to turn by hand.  As it is with the supplied nuts (without the wings), you need a wrench or pliers to tighten them, and it is VERY DIFFICULT, still trying to tighten them after about five (5) hours - it's SMALL in there.  I would recommend IF the person installing, had plenty of room.