So I finally took the plunge and after much consideration decided to get the 12" rMB over the Surface Pro 4. I bought the 1.2ghz version with 512gb. Got it 150 bucks cheaper, but it was still inanely expensive (about 1500$). I knew I'd have to get used to the keyboard, so I'm not saying much about it here. However, here are two points I'd like to talk about: 1. Speed. I did a lot of installation work today and am downloading my entire music library from Apple Music as we speak, so I wasn't too surprised to see it slow down. However, several times today it almost came to a complete standstill. E.g. as I was opening Skype for the first time, it took it 30 seconds to authenticate the app developer. Really weird stuff. So yes, it's dramatically slower than a rMBP - I didn't think I'd notice as it won't be doing any heavy lifting. 2. Trackpad. I don't know why but it just feels a lot less precise than my 15" rMBP's (which also has the Force Touch version). As a matter of fact, it feels a lot like the one on the XPS 13 that I have from work. It's ok, not bad at all, but just not as precise as the one on other Macs. Perhaps it just needs to be broken in first? Despite these two points I feel like I made the right choice. I don't think I would have been happy with the SP4 for long. I primarily need a lightweight laptop and really don't require a tablet. If version 2 really comes in March, I'll probably trade it for that one - as I got it with a discount, I won't be losing that much money, I reckon.