I always saw Gears, Forza and Halo (specially Halo since Bungie is no longer in charge) as weak exclusives because I think shooters are just OK (I only played Gears 1, was fun) and don't really like racing games that much.
But, surprise surprise, many people actually like them and consider them System Sellers.
sorry, didn't see it the first time.
The option to do that is nice and convenient*, but if your laptop can run xbox one games, then why don't you just play with the laptop? I mean, you can just plug it to the TV and use a wireless xbox controller.
And, ok, let's say your laptop's HDD is smaller and you have more games on the 2TB xbox. You still need the games on your laptop to... play the games on your laptop.
*the save file on the pc and xbox is the same, right? they synchronize via wi-fi between devices or the save file uploads to the microsoft server?