Unreliable, not fun, useless
Still crashes 50% of the time when attempting to synchronize. This is on an iPhone 6. Drains battery remarkably quickly when using. Glyphs are near impossible to see; black on grey is a horrible idea. Look at The Room for examples of how to hide things in plain sight. Tying up your TOP LEVEL assassins to go collect chests for 24 HOURS is incredibly frustrating when trying to get through a run of missions.
Syncing with Unity on XBOne is a waste of time. Sending rewards like chests is cool; but then why are there nomad chests already unlocked in the game? And...why does it matter what kind of chest it is?
Either Ubisoft servers are supremely unreliable or cannot handle the amount of traffic generated by their users. Either way UX is pretty bad for a top tier game. Stick to consoles and PCs.
Sniperform about
Assassin’s Creed® Unity Companion