I've been building hacks (as the community calls them) since 2010.
If you get a golden build and get it working it's almost like a real mac. It's possible to get everything working 100% but it's time consuming and even in the best case scenario macOS updates will probably be a pain.
Another aspect to consider is noise. If you come from the Mac world you are probably spoiled by low noise or silent computers. PCs are very noisy and you will probably have spend time in research and money in expensive silent parts to solve this.
Finally, a common problem with hackintoshes is wifi. I've tried everything, believe me. If you intend on using Wifi your best bet is buying the same chip Apple uses with an adapter. Many manufacturers offer their Wifi drivers for macOS but those are usually finicky or outdated.
Macs (maybe with the exception of a Mac Pro) are only silent at idle, not in full load. By my definition of 'silent' at least. If you can't hear the system while gaming because you use headphones, sorry, it's not silent.
If you just randomly build a beige box hackintosh, it will be noisy. If you spend some quality time on silentpcreview, you can get one that is silent even under load. I know, I have one.
Still, I'd very much like to get a decent Mac Pro instead. Devil's in the details, let's wait and see. My hackintosh isn't becoming obsolete any time soon.
I briefly ran a hackintosh when my Biostar motherboard died and I was frustrated with how slow my old Macbook Air was running. Pretty simple process: replaced it with a Gigabyte, downloaded an installer image from my Mac, and used to TonyMac tools to set it up. Unfortunately wasn't able to get Xcode to work reliably. Everything else seemed to work but Xcode was a crashfest.
I'm not sure it's the hackintosh... now and then I hear a lot of complaints about a particular version of xcode even on native macs. I don't use it, but I have work colleagues who do.
I was running the same version of Xcode on the same version of Mac OS on a 4-5 year old Macbook Air and it worked fine there, just slow.
I've certainly had Xcode crash once in a while, but this was something else. Tried reinstalling it and no change. I don't think I even got it to finish a build.
The FC R5 is a HUGE case, and it's as good as my mac pro 2008 really. Lighter too! Very, VERY well designed, excellent filters, and I run 3 140mm fans in it so it doesn't make a noise; the fans are permanently just over the stalling speed. Really very good cases.
If you get a golden build and get it working it's almost like a real mac. It's possible to get everything working 100% but it's time consuming and even in the best case scenario macOS updates will probably be a pain.
Another aspect to consider is noise. If you come from the Mac world you are probably spoiled by low noise or silent computers. PCs are very noisy and you will probably have spend time in research and money in expensive silent parts to solve this.
Finally, a common problem with hackintoshes is wifi. I've tried everything, believe me. If you intend on using Wifi your best bet is buying the same chip Apple uses with an adapter. Many manufacturers offer their Wifi drivers for macOS but those are usually finicky or outdated.
This is expensive, but it's IMO the best choice: http://www.osxwifi.com/apple-broadcom-bcm94360cd-802-11-a-b-...