I've used MacBooks for a little over a decade. This is the 4th I've owned, and my least favorite so far.
What I love:
I use my Pro primarily for photo processing. I love the retina display, reliability, processing power, and battery life. It's why I own a MacBook Pro. Specific to this version, I love that the speakers are now on right on top, and that the new charger does not use magnets. However, I don't want to give Apple a lot of credit for simply fixing their own bad designs.
What I find annoying:
This pro has two USB-C ports and a an aux port. That's it. No USB ports, no SD card, no DisplayPort or Thunderbolt Port. I thought I could live with it, but it's absolutely aggravating. I need a $30 adaptor to pull images off my SD card, another $30 adaptor to transfer them to my external hard drive, and once those two are plugged in, I'm out of ports. I can't even charge my computer while transferring images but that uses one of the USB-C ports.
What I hate:
The keyboard and trackpad. You use them for everything you do - and I hate them. The keys are difficult to press, too big, too flat, too close together - something. I can't tell you exactly what it is about them, but I hate them. And I hate the noise they make. Similarly, I hate the trackpad. I can't tell you what it is specifically about the Force Touch trackpad that makes me hate it so much, but I absolutely do hate it.
At this point, I don't care if the machine is beautiful or powerful, it is almost too annoying to use, and that makes it fairly useless to me.