This guide was great! My previous OSX 10.9 install was kind of problematic, with a lot of errors, and so I was a bit reluctant to install a new OS. But after finder stopped working, I had to and that was a lot easier then expected.
No problems during installation whatsoever. I have a late 2014 CustoMac (Gigabite Z87MX-D3H, i5 4670K, GeForce GTX 660) and everything went well. Only thing is I forgot the network driver with the Multibeast install (i used AppleIntel3.3-something, besides Realtek 892 the only options I had to use). The 450 GB time machine back-up on my NAS was therefore installing over wifi instead over the LAN-cable. After fixing, the time needed by migration assistant dropped from 24 to ca. 5-6 hours* SEE UPDATE!
The computer seems to work great the first hours. Previously, i had a lockup sometimes, especially using USB 3.0 ports. I'm curious to see how it's going to last with 10.11. I guess beter, because of the pain free installation!
For the record, I chose the following options during installation:
Step 2.15: UEFI Boot mode
Step 3: Set to Optimized Defaults, Set X.M.P. Memory Profile to Profile1, Vt-d was shown as enabled, but is greyed out and can't be changed. Haven't encountered any problems yet
Step 5.7: UEFI Boot mode
Step 5.8 : Audio: RealtekALC892, Network: AppleIntelv3.3-something (the latest, because of restore Mutlibeast is not on my mac anymore)
That's it. Thanks again for this great site!
*UPDATE: It's not working any more. It worked after migration but after restarting the problems begun. Using migration assistent to restore my files also restored the system-files and those caused a never ending rebooting cycle. Tried some stuff, but decided that starting over was the fastest way. So did everything mentioned above minus the migration assistent. You can access specific files and folders of your TM-backup by double clicking on the back-up file. It will then mount as a drive which you can open. Then browse and copy, do NOT try to move anything as it can corrupt your backup. Then just restore the folders you want to restore. Works fine for now, even after several restarts.