It works out for me. Because 70% of my access happens within my home from different devices and i get to use my gigabit connection in the LAN. I think for many users it is the right setup (Unless otherwise you are a traveling salesperson).
My personal situation is much the same as yours and it works well for me, too. I question how well, however, it would work for someone who is more into creating media with their mobile phone than I am, or someone who wants to share data from their personal network with friends / family.