PC RM11.2.0.0 Tree has 4,000 people
Updated Tree Share today using the new API - I know it may be early, but it worked really well for me.
NOTE: for me it seems like if you had cleared a difference between RM and Ancestry before the change (e.g. yellow item) it will come back when you Sync and you will need to either clear them one by one or clear everyone from change list.
Web hints for Ancestry are still a little slow but for me it’s not that bad. Seemed to be hit or miss on speed.
I know it may be early but IMO it seems to be looking good.
Thought I would pass along my experience to date.