This faucet is a replacement for a 15 year old "brand name" single handle unit with pull-down spray head. This faucet had starting leaking at the valve assemblies in the faucet body and I didn't want to try to repair those. Spent 2.5 - 3 hours extracting the old unit...corrosion and stripped threads made this part of the job almost undoable. That and the poor mechanical design of the old unit made for a lot of blood, sweat, and tears on my part.
Conversely, the new faucet was installed and tested in about 35 minutes. Two threaded connections for the hot and cold inputs and one large threaded connection for the faucet to sink interface...voila, done.
Be sure and add Teflon seal tape to the hot/cold input connections; it's not included in the packaging. The instructions are written in a version of what appears to be Outer Mongolian translated to English that would cause cerebral meltdown in any grammar school teacher, i.e. "Installation finish and test leak or not." Thankfully the illustrations are very good making the verbal portions superfluous...but still amusing.
Everything was included in the packaging (with the exception of the sealing tape); escutcheon plate, spare gaskets, allen wrench, and 3/8 to 1/2 adapters for the hot/cold connections (if needed)
After all that being said the new faucet is highly functional and a very good looking improvement over the old one. I would highly recommend it and would add that the price was about $75 -$100 less than the name brand equivalents. If this lasts as long as the one it replaced, I will be very pleased.