So the Sync thing is sorta neat but limited. i was fiddling with it this aft on Mac / High Sierra.
It only works on desktop, and you need to have created an entertainment zone on the mobile app first (sheesh). Once installed It has to route video and audio through system extensions so Safari Netflix gets mad when you Airplay. Likewise trying to just throw audio to an Apple TV 4K while syncing lights hijacks the sound output to Hue Sync. You can brute force it by doing a mirror Airplay, display and all, which is a bit dumb. Chrome won't complain about anything so you can use that to get your freak on but I advise looking up extensions to fix Netflix 720p limit and/or .. what is it. ctrl alt shift s or something, you can override the bitrate limit.
that said Daft Punk's Lose Yourself to Dance looks pretty dope splashed all over the wall. i'm using a Lightstrip Plus w/2 extensions and 2 side lamp colour bulbs.
I really doubt I'll use the sync thing all that much, maybe for "event" viewings or w/e, but what I'd like are some of the slow colour cycling presets from the Labs and other (sea of!) Hue iOS apps out there.
Feel like I jumped in at the right time, lots of changes recently to the whole Hue system.