Just posting in here about my experiences with a UX305LA on OSX 10.11.5, which I've been using for two months from this guide
https://www.tonymacx86.com/threads/guide-asus-zenbook-ux305fa-for-el-capitan.185917/
Software
I've yet to encounter any issues installing any software, which includes some Adobe Creative Suite programs, Sketch, Steam, Slack, Sublime, Unity.
Hardware
I've used a Magic Mouse 2 with the device with full functionality and am currently using a Magic Trackpad 2.
Wifi options will have its own section below.
Wifi
Everywhere I've read has said the wireless card is soldered into this model so I haven't even checked. This does leave it rather limited for wifi options.
1. Edimax EW-7711MAC USB dongle
2. HoRNDIS USB tethering driver for Android devices
The Edimax EW-7711MAC is, to my knowledge, the only dongle with an El Capitan driver. This model works without a bother and the UI, while not very pretty, does provide quite a bit of detail about the available networks and I've found that handy. HOWEVER it only works with 5GHz networks, which is to say the odds are much higher that a random network will not work with this dongle. With that in mind, it's fairly expensive (around $16) for a not guaranteed solution, fine for home use but not for moving about.
I've read some reports of an older cheaper Edimax USB dongle working on El Capitan too with older drivers, so that might be worth looking into.
The HoRNDIS USB tethering driver for android devices has worked pretty consistently for me. HoRNDIS-rel8pre2-dbg.pkg is the version I've been using (check on its github for setup suggestions from other hackintosh users). Having a smartphone hanging out of your laptop isn't ideal on a bus or train but it's a free option that I've found to work with absolutely no issues so that's hard to complain about.
Issues I've encountered
1. On a sparse few occasions, the device failed to boot but it's been so uncommon and easily resolved (turn it off and on again
) that it hasn't bothered me at all.
2. When adjusting the screen brightness away from the specified levels when not connected to a power source, if I let the computer go to sleep it'll lock on whatever brightness setting it was on. If I used Fn+f7 to turn off the screen before it went to sleep, there's a risk it will lock on this. By connecting to a power source, the screen brightness will switch to lock on the default brightness for that scenario instead.
3. Occasionally, when idle, the computer restarts instead of going to sleep. I'm not sure what's up there but it has never occured at a time where it has been an issue (I think it's only happened when I've powered on, signed in and then left idle before doing anything else) so I haven't given it much thought.
4. Shutting down sometimes seems to take a long time (~2 minutes) without much feedback as to what's up
5. Sometimes when the UI states the volume is muted, it actually isn't. I believe this is when it powers on when the audio had been set as muted before shutting down. Solution: unmute (fn+f12) and mute again.