I've been using every public beta since the start except the 5th beta (I just couldn't be bothered) on my late 2013 rMBP and it's been solid. And fast. And I love Dark Mode.
YMMV, but issues other people have been having like wifi calling, hotspots, and printing have all worked fine for me.
		
		
	 
Yeah, Continuity seems buggy (has it ever not been?). I had an old beta (dev beta 2, I believe) on a secondary partition, and Watch Unlock, Handoff, and Universal Clipboard didn't work. So I formatted, installed this beta 7, and… nope, all three still broken. It doesn't seem to see the Watch:
	
	
	
		Code:
	
	
		default    23:02:51.170980 +0200    sharingd    Client bundle ID: com.apple.preference.security.remoteservice
default    23:02:51.172070 +0200    sharingd    Clearing Auto Unlock device cache
default    23:02:51.172996 +0200    sharingd    Devices (
)
default    23:02:51.177095 +0200    sharingd    "The connection to ACDAccountStore was invalidated."
default    23:02:51.177171 +0200    sharingd    No eligible devices (signed in: YES, last watch seen: (null))
default    23:02:51.177283 +0200    sharingd    Devices with description {(
)}
default    23:02:51.177419 +0200    sharingd    Ranging supported: YES for model: MacBookPro11,2
default    23:02:51.177990 +0200    sharingd    Repair cloud pairing if necessary
	 
 
But it also doesn't do Handoff or Universal Clipboard with the iPhone, even though AirDrop seems to work fine. ¯\_(ツ)_/¯
Toggling Handoff gave this interesting bit:
	
	
	
		Code:
	
	
		2018-08-13 23:13:23.093315+0200 0x3694     Info        0x0                  891    0    sharingd: [com.apple.sharing:Handoff] Failed to find any valid cloud paired devices
	 
 
This could be relevant to those who say signing out and back in helps. That said, I tried that, and other than making the CPU go crazy for a while and the GUI getting stuck, it didn't seem to do anything.
(edit)
Signing out of iCloud, then out of my Mac account, then back in, then back into iCloud, made the above logs go far crazier, and fixed it. Clearly, there's (still! this stuff is four years old now!) a weird state where the Mac and iCloud don't agree on "valid paired devices", and signing back in forces a cache flush:
	
	
	
		Code:
	
	
		2018-08-13 23:22:07.336919+0200 0x10d9a    Default     0x3b311              1916   0    sharingd: [com.apple.sharing:AutoUnlock] New local LTK, clearing remote LTKs and disabling Auto Unlock for all keys
2018-08-13 23:22:07.337033+0200 0x10d9a    Default     0x3b311              1916   0    sharingd: [com.apple.sharing:AutoUnlock] Disabling pairing for all keys (
)
2018-08-13 23:22:07.337083+0200 0x10d9a    Default     0x3b311              1916   0    sharingd: [com.apple.sharing:AutoUnlock] Deleting all ranging keys
	 
 
A bit sad.
Also, while Handoff and Watch Unlock now work, Universal Clipboard still does not.
[doublepost=1534196135][/doublepost]I also played with the Home app.
Leaving aside how much it feels like an iOS port (I… hope this improves?), it does show my accessories, but just says "this accessory is not responding". That's odd, cause my Watch and iPhone can both interact with it just fine.