It is the cheapest 7-seater and offers good fuel economy and storage spaces. However, it lacks modern safety features, much less creature comforts like better infotainment system. Only two airbags, no ESC.
Yes, Perodua Alza is available in ISOFIX. The available ISOFIX variants are: 2018 Perodua Alza 1.5 AV AT, 2018 Perodua Alza 1.5 S AT, 2018 Perodua Alza 1.5 S MT, 2018 Perodua Alza 1.5 SE AT.