Recently I bought a 2017 15" MBP with touch bar.

Here's my 0.02$.

It's as great as any previous Mac I've owned and faster ofc but...

1. I don't like new keyboard (but unless you want a Windows PC you'll have to get used to it because they are not going back to old ones). It's not like it's the worst keyboard ever but previous ones were way nicer. This one just looks better but that's it. Having that said, it's not a deal breaker. It's just a step back in my opinion.
2. Touch bar. It's pretty much useless. Yeah, you can do a lot of stuff on touch bar and first two hours everything looks great as it's a new toy but after that you'll be pretty much bored. I consider myself advanced user who uses keyboard shortcuts for 90% of things I don on my Mac. So, if you're not that kind of user you might even like it, not sure. All I know is I don't. Also, if you're like me, doing front end development, you'll hate the missing physical escape key.
3. I hate new, enlarged trackpad. I get a lot of misclicks while typing but I hope I'll get used to it.
4. Everything else is pretty much great and display is X times better than the already great one on my previous late 2013 Retina MBP.

P.S. I'm a Mac user since 2008 so this may affect my review a bit. If you're coming from a Windows notebooks this might not be something that'll bother you.

By the way, did I say how gorgeous new screen is?