Well constructed, like the fact that the aerator can be removed easily with a provided tool for easy replacement and cleaning.  Our Kolher faucet had a brass piece that had to be removed and it was impossible to not chew it up so Kolher made you buy it and the aerator.   One issue with this faucet (at least the one I got) was that the hot and cold stems were not labeled as stated in the instruction manual.  The hot just has a label stuck to it saying use a wrench when tightening down water line but no other markings.  Quick connects are easy, but if you goof, as I did, and put the wrong stem on the wrong side, you can undo the quick connects by pressing in on the two tabs and pulling them off gently.  I had to search delta site for this info, it was not in the installation manual.  I was not happy that the drain stopper being light weight plastic.  I kept the old brass one from my Kohler faucet just in case I decide I really  don't like such a light weight stopper.