I live in the Pacific Northwest near Puget Sound. It doesn't get very cold here because of the moderating effect of the water. Therefore I think that inflow temperature would not be very low.
The two of us use little hot water compared to your average American household, and also are good about using flow restrictors when soaping up in the shower.
We are very interested in tankless for saving _floor space_ in our utility room which makes tankless attractive.
I have been told that I _would_ need an upgrade in the size of the gas line for a tankless system.
So, with that in mind, I am interested in comments about how appropriate folks think tankless might be for us.
It is my understanding that "the devil is in the details" when it comes to tankless installs. Most bad experiences come from lousy workmanship, but someone who knows their stuff can do it and make it work properly.