I'd take the Subaru as overall it's probably an eaiser car to live with - and possibly if there's any additional family members to consider.
I'm not sure I agree about it having financial benefits as they are depreciating pretty heavily at the moment whereas the FRS seems pretty stable.
I own a Scoob and I love to drive it - hated the image etc that surrounded them and said I'd never own one years ago. What a difference driving them makes to that opinion tho.
Go for it, I doubt you'd ever look back.
JK