Actually, the handle on my Kohler Artifacts, moves sideways…to the left for hot, to the right for cold. We like that just fine. We can easily move it with one finger, and that setup prevents water pooling on the surrounding portion of the counter.

We were so used to the Grohe being cold forward and hot backward that we had our Brizo lines switched to the same thing.

Brizo is owned by Delta (they are their luxury brand), so expect them to follow their convention.

Back is hot & forward is cold on my Moen. Which I find annoying so I am going to switch the water lines the next time that I pull everything out and clean under the sink.

I've got a Brizo and it works for me since I prefer to have the faucet in the cold position (up). It's an easy flip since there's no technical reason to which pipe hot and cold are connected.

I've also had plenty of house guests who have never experienced that type of faucet. They either have two handles or a single control on top not on the side. I usually have to remind them several times what's what.

We chose hot up for the exact same reason. We mostly leave ours on hot and thought they looked nicer up vs down.

I guess I have better things to do . I find a afucet I like and deal with how it handles the temp . Sort of the ame as which side for the DW in the grand scheme of things just something you deal with.This is my faucet it looks nice either up or down

I'm with Patricia. I just don't care. :)