I have had a Mazda Familia before.
It's not true that parts are hard to come by or to be sourced out nor very much expensive. Based on my experience, what's difficult is to find a mechanic who wont charge much on labor cost. Compared with my Corolla (AE101)or Sentra (b13/b14), the Familia features a cab-forward design, pushing the windshield and dash far forward though maximizing the cabin space, hampers room in the engine bay, making it very cramp. Just look at the engine bay vs Sentra, Corollas of same year. Thus, servicing it is very difficult and time consuming. Lugi mga mekaniko kaya minsan nagiging taga sila. I remember taking the whole day of a mechanic in banawe while all i asked him to do is my CV joint and engine supports.
Performance-wise, it is remarkable. If efficiency is your priority get a manual. As it gets FC up to par to most rivals. Matic is a good performer but drinks gas too much (mine gets me 7km/l AT-although surplus na AT ko, kaya matipid pa yan). Runs like a manual, and isnt dragging like that of 00's Exaltas.