Same. I bought a 2018 MacBook Pro with the Touch Bar this July. Before that, I owned a 2014 MacBook Pro, the last one with the mechanical trackpad. My new machine is absolutely better than my old one.
The dimensions aren't really a selling point for me at all. Both laptops are thin enough and light enough for me to carry them to and from work comfortably.
Performance is better across the board (6-core i9 vs 4-core i7, 32GB vs 16GB, faster SSD). It has a larger, pressure-sensitive track pad. The display is better.
I have a slight preference for the old keyboard, but I don't dislike the new one. I could take or leave the TouchBar. I was never a big user of the F keys and IntelliJ, where I spend a lot of my time, has good TouchBar support. I like having Touch ID. I'd prefer to have a real escape key, but the button is still in the same place so I haven't had to retrain my fingers to hit it.
USB-C with a Thunderbolt 3 hub is marginally more convenient than a Thunderbolt 2 hub plus a MagSafe power cord. I do miss MagSafe though.
These are almost exactly my thoughts as well coming from a 2015 MBP. I would only add that for me, I actually like the new keyboard. The low/firm travel of the keys is actually preferable for me. I felt like the old keyboards were "mushy". That's obviously a personal preference, however.
