I tried the rear seat of the Mazda 2, it’s a decidedly 2nd-class experience when compared to the rear seat in the old Toyota Yaris. Access is awkward as the rear door doesn’t open as wide & legroom is reduced, as is available height. Seats are also uncomfortable.
However, in the 5 years I used the Yaris I only had the back seat occupied for one day. A plus is the inertia reel seatbelt for the centre rear passenger seat is built into the seat-back, rather than deploying from a roof-mounted pod.