I’ve now had the new 16-inch MBP for a while and I can report that I am generally quite pleased with it, in and of itself. I was upgrading from the 2015 design. The keyboard on the 2016-2018 models was completely unacceptable to me, but the keyboard on this 2019 16-inch model is perfectly fine. The new keyboard is basically the mechanics of the 2015 design applied to the larger key size of the later models, but with the old arrow key arrangement and a hardware ESC key. The screen is very nice. The on-board speakers sound stunningly good considering what they are, but I seldom use those. I’m finding the fingerprint sensor to be a boon. (YMMV)
The other key details—to me—are the configuration options, particularly RAM. Some folks have stated that 16GB is plenty; I think they’re wrong wrong wrong. As soon as you’re actively paging, performance goes out the window, even with modern fast SSDs. I advise you do not skimp on RAM. I would not purchase one of these with less than 32GB, particularly given these machines are not upgradeable. Spend a few extra hundred and don’t regret it later.
Now, Hainbach just did a rather critical video about this 16" model and its suitability for music production, and his criticisms are not wrong (although the same criticisms apply to all the MBP models of the last several years, not just this new one):
USB-C is a cute connector design, but it’s maybe a bit too cute. Too small, too flimsy (although not quite as bad as the appalling micro-USB connector). These MBPs are pretty nice computers right up until you want to attach anything to them. And the total cost and inconvenience of all these hubs, docks, adapters, and stuff quickly adds up.
All that said, IMO, at this particular moment—until Apple refreshes other computers in the product line—the new 16" model is probably the ONLY MacBook you should consider, if you’re buying new.