Congratulations on you’re new machine! I do have some questions you could answer if you don’t mind?
What’s Windows like on the Surface Book 2? I’m really out of the loop since 2011, which was the year I started to use MacOS.
Have you tried the different modes? Like taking the screen off flipping it around and using it in studio mode? If so what’s it like?
How portable do you find the device?
Windows 10, especially the latest version, is very usable. Still has a few legacy oddities, but it's pretty easy to not see them. For example, there's the new Windows 10 settings panel, which is clean and modern, but there's still the old NT-style control panel that is mostly hidden away but contains some deep settings that one might have to deal with occasionally, whereas MacOS has only the single, unified system settings. But I've had to use Win10 for work for quite some time, so I'm familiar with it. It's very stable and usable.
Popping the screen off takes about 3 seconds - the "clipboard" is surprising light, and since it contains everything but the dGPU, it's just as fast as when the computer is in one piece. Has only about 20% battery capacity of the whole thing, so it's not really meant to be used as a tablet full time. But it'll definitely last a few hours of couch surfing and can be charged independently from the base if you want.
Flipping the screen over and using the base as a monitor stand is actually quite nice. Makes for a good second desktop monitor, and I find it more pleasing as you don't have the laptop's keyboard to look over. Closing the lid with the screen on backwards give you the "studio" mode. Here it's easy to write on the screen while on a table - gives it a slight incline for comfort and of course the full 10+ hour battery life of the whole thing together. I look forward to using it like this at work quite often (I take a lot of notes in OneNote).
You could actually use it like a tablet in this configuration, too, but it's weight will quickly be tiring.
As a laptop, it's heavier and thicker than a 13" MBP but I think lighter than a 15" MBP (just a ballpark estimate). The laptop is a little top-heavy when open since so much is in the screen portion, but the hinge is quite stable.
The keyboard is great. While I personally liked the low-profile keyboard of the new MacBook Pros, the SurfaceBook 2 keyboard is top notch. Positive tactile snap in and out, but quiet and with good key travel. Backlighting is a little bit uneven but that's nowhere close to being a dealbreaker.
Runs my 4K monitor perfectly when connected to the desktop Surface Dock. Apparently the SB2 will only run one external 4K monitor at 60Hz (or two at 30Hz), so for some people this might be a problem, but doesn't impact me.
It's extremely fast. Quad core i7 with a dGPU in a 13" form-factor. Sure, it's a U-series processor, a 15 watt part with no fan, so it's not going to sustain a full-CPU load for hours at a time. But for short bursts, it's great and runs cool. And yes, the "clipboard" portion with the CPU and SSD does
not have a fan, so most of the time, the laptop is completely silent. The 15" model apparently has a small fan for when necessary, which will permit more sustained high GHz usage.
The dGPU is very good for my purposes (medical 3D rendering), even when outputting to a 4K external monitor. The fan in the base is audible when the dGPU is being stressed, but no more than what I heard from my 15" MBP under similar stress.
The fit and finish is up to Apple standards. Great laptop for someone who wants a powerful machine in a 13" form factor and occasionally wants a tablet. Thicker and a bit bigger than a 13" MBP. Smaller than a 15" MBP (though thicker). If you want a tablet most of the time, I'd go with something like the Surface Pro instead. But for a laptop that can also occasionally be a tablet, it's awesome.