The Compass was completely redesigned for 2017. New for 2017 are adjustable head restraints for all 3 seats (the side seats used to be fixed head restraints, and there hadn’t been a head restraint in the center position before this). All of the buckles are now rigid (not ideal) and the center is narrower and has a very prominent bump at the bight (seat crease) – also not ideal.
The center seat belt comes from the roof (yes, this is safe). There is no head restraint for the center seat – so this is not a safe place for an adult or a kid in a backless booster as there is significant risk of severe whiplash injuries.
Due to cup holders on the raised floor in the center seat you won’t be able to use a load leg in the center seat.
Due to the very large & fixed head restraints, you’ll be best with a car that has a V-shaped tether if installing a forward-facing car seat on either of the side seats (think an IMMI Go or a Britax car seat).
The innermost lower anchors (belonging to the side seats) are spaced 15.3 inches apart and may be borrowed to install a car seat in the center so long as the car seat manufacturer is OK with this wider spacing (standard spacing is 11 inches). See here for more about which car seats are OK with a wider spacing for the lower anchors.