I did have trouble in 14 with Coverings not cleaning up when exterior openings were moved, but so far my test of Coverings cleaning up in 16 has worked fine.
Best to not apply Coverings till all the openings are set.
Two advantages of Coverings are;
1 you can set the opening trims per wall and not in the respective openings dialog (window/doors) for consistency and per individual walls.
2. You can easily set up multiple siding material for each wall.
Of course you could do this with thin siding only walls, but that's a pain.
Initial cost is fair but cost of upgrades each year is a bit steep if you don't use it a lot before the next upgrade cycle.