I've had my 2018 15" MBP (the base stock model with i7, 16GB, 256GB ATI555x) since August 2018 and it has been one of the best laptops I've ever owned. It's very fast, the screen is brilliant, and the onboard sound is also quite good. I use it almost daily for my job (computer consultant) to connect remotely to my customer's PCs, Macs and Servers and to setup networking equipment and in my free time I like to write. Also, I do occasionally use the web cam and I don't think it's too bad regardless of it being only 720p. I use it with Discord and FaceTime and it's fine for that, for sure. I've written over 80000 words of a novel on it with Scrivener, so I've put a lot of time on the keyboard and I love it! Previously, I owned a couple 12" MacBooks (2015 & 2017) and a 13" Pro (2016) and this gen 3 keyboard is definitely the best of them so far. No issues for me.
Good luck with your new 15"! I'm sure you will love it.