A couple of years later and I'm a convert. If I had to buy a new MBP today I would definitely make sure it has a touchbar. It turns out app makers have found some nifty uses for it, like the ability to quickly mute/unmute when in conference calls, quickly changing volume/brightness, stepping through code while debugging etc etc. These are seemingly insignificant quality of life improvements, but I definitely miss them when on a machine without a touchbar. Conversely I haven't missed the Fn-keys, not even once.
That hardware esc key looks tasty though, I hope they bring that to the 13" model.