The reason I did not consider Iriz/Persona is because I read not so good things about its Punch CVT.
I've also read that Myvi's NVH aren't the best and also the Eco Idle could be quite annoying. Myvi owners could you provide opinions on this?
I'd prefer to drive the Iriz since it has much better pickup despite the lagging CVT clutching. The Punch CVT is something you can get used to after a while tbh, and the interior of both Persona/Iriz is subjectively better /more modern imo than the old-school budget feel of the Saga.
For long term I think a sedan is a more worthwhile option.