I am a SP1 since launch week user. Went through 4 launch, miscellaneous problems ranging from motherboard to power.
Right now, I have the sp3 and 2014 MacBook pro retina 13. I got the MacBook a few weeks after the surface. My first three surface has major issues. One wouldn't even let me power on and finish the first boot install steps without restarting and going through a repair loop. Ran for 24+ hours, never finished. Second one would have the WiFi on wakeup issue, except instead of resetting the adapter it would bluescreen crash every time. The third one would randomly shut off. Sometimes it was just the screen and it went into like sleep, others it would be a full shut off. It could be on battery or plugged in didn't matter.
So all ticked I went and got the MacBook pro retina. I have a large 17' workstation laptop, and a workstation pc, I just want something small thin light and good battery for travel. I really wanted a zenbook but bb didn't sell them anymore at the time, and they were $2000.
I love my mac, hardware is great, solid, you can open it and clean out fans, sometime in the future may be able to buy and replace the SSD as well.
Software wise, I see how/why people like it. But I'm a straight windows user. All my machines are windows, all account are windows. I had a heck of a time even getting mail/colander/contacts to sync to mac. Problem for me is, almost all I do I strictly windows only programs. No biggie, just install parallels and windows. But doing that, I'm in windows for everything except basically web browsing or light picture editing. Gone is good battery, gone is good trackpad, ect.
Plus having the SP1 for over a year now, and being a electro/mechanical engineer, the surface pro was a 'tablet pc' for me. Not being able to write notes and sit on couch all snug with a tablet was a big deal, missed, but not a big deal. But going out in the field, and then having to balance a laptop with left hand while using mouse/keyboard with right hand, was a deal breaker.
So I went back, and went through anout 3 SP3 before I got one that wasn't unusable. Yes there are things on the mac I miss, but ..
I guess its just the SP3 style device is just tailored perfect for my needs.
Now I have both, I only use the surface. Can't tell you when I used MacBook last. Wife grabbed it asap when I rebought the surface, but she's not tech savvy and can't figure out the mac operating system, so she's back on her 4 yr old Asus.
The mac is really a great laptop and if I needed a 13" light powerful laptop, and if I weren't so windows tied I would be very happy with the mac. Problem is, everything I do is windows, and I need a tablet pc. The MacBook pro retina 15 is a joke. For $2500 I could either get the MacBook, or what I got. Which is 17" MSI gt70 dominator pro, i7 4810mq, 880m stock graphics (which I sold and bought a quaddro k5100m), 24gb ram, 3x 500gb Mata (windows 7, windows 8, scratch disk), 1 1tb 2.5 samsung evo sad for data storage. Its not as sleek/thin/light as the MacBook, but performance wise it just blows the MacBook out of the water, and instead of maxing at 512 or even 1tb of storage, I have 2.5tb of sad, with capability of 5tb of SSDd storage.
And like I said, all major programs I use are windows. Solidworks, Sony Vegas Pro, several file converters, rockwellautomation software, blender, ect.
So, no. No regrets going to surface pro from a mac. But I can see why people really like Mac, its just not for me. While the opposite might be for others.