The keyboard cover(Type Cover) actually blew away my expectations. I would say its better than about 90% of the actual keyboards on laptops and always felt like a real keyboard and never felt like I was typing on an accessory.The trackpad is the best trackpad out their for any Windows PC. I'm so used to it now that I don't even ever think about it, but I remeber when I first used it feeling like it wasn't as good as an Apple trackpad. As I said it never was a problem and now I would probably say the exact opposite if I tried an Apple Trackpad. It's just a little different and takes a few days to be completely comfortable, but in no way is it inferior.
Before I got a Surface, I had a Macbook Pro and an iPad. I loved the form factor of the iPad but hated that it was pretty much a blown up iPhone and just wished Apple would put OS X in a tablet form factor. I really didn't care how much it cost or if it was perfect because I was willing to trade off for the form factor. At the time I broke my iPhone and needed a new phone and since I didn't really like iOS and was in the mind frame that Android is evil, I ended up with a Windows Mobile Phone 8 made buy Nokia and really loved the UI and how it worked with touchscreen. So after having that experience when it came time to upgrade the iPad I actually bought a Surface RT. At the time I didn't need a tablet that could run desktop apps because I still had my Macbook Pro. It worked perfectly, it had full MS office on it for free, I could hook up an external keyboard and monitor and basically have a Windows Desktop. I never bought the Type Cover for it because at the time I just wanted a tablet. I could even torrent on it which was a huge win for me.
Well I found myself using the MacBook Pro a lot less and using the Surface RT a lot more and eventually decided to sell the MacBook Pro and buy a Surface Pro 3. I had that until I decided to buy a Surface Pro 4, and gave it to my sister and it still works. Heck I gave my mom the Surface RT and she is still using it to this day, but her omly needs are Facebook, Netflix and Solitare. Had the Surface 4 for quite a bit of time and loved it. It was able for me to be a tablet, a laptop and basically a desktop when I hooked it up to an external Keyboard and mouse. Plus even though the storage was only 128gb SSD at the time, it didn't matter because I could put a 256 Micro Sd card in it and have upgradable storage. One thing for sure is to buy Microsoft Complete when you buy it. It extends your normal warranty and allows for 2 accidental damage claims with a deductible of 50 dollars. It has saved my ass a few times and actually benefited me when I took it in and they didn't have any of the 128gb SSD 4gb ram models and just gave me a 256GB SSD and 8 GB model lol. Also it says only 2 accidental claims but the truth is after that it's a case by case descion buy the manager. I had used up my 2 claims and had an accident with it so I thought I was SOL anyways. Went to the Microsoft Store and had already intended on buying a Surface Book 2, which I had been wanting and only waiting until the Pro 4 died. So I bought that and since my Pro 4 was still under extended warranty asked if there was anyway to do a third claim since I just spent a huge ammount of money in the store anyways and sure enough he said yes and I walked out of there with a Surface Book and a Surface Pro 4 for 50 dollars. I recommend it highly and remember when you first get it, it might seem inferior in someways to a Mac but really it's only you being used to the way a Mac works and when you get comfortable with Windows, you won't even thimk about it. Hope that helps and feel free to ask me any questions because I remember when I first switched I was looking for a way to do something and couldnt for the life of me figure out how and it was only because I was thinking in terms of how I did it on my Mac and finally when I realized how to do it, I was like well that actually makes sense lol.