One problem I see with the time sync is for those of us who travel (extensively). When I say problem it's more of a small nuisance rather than much else. Every time I connect the WM100 compares time to whatever your connecting with (i.e . Android/IPAD). I travel across many time zones and each time I have to tell it to ignore making a time change to match my device. This of course is driven from my devices aligning themselves with the local time zone automatically which does not match my home time zone.
So, it could be a problem if the units were designed to auto sync from the connecting device (internet sync); unless there were some switching or this were done locally via firmware setting on the unit itself.
On another note, I can say that I've connected with the WM100 without issue when traveling, either local (hotel) internet, wifi, or my phone service provider.