I recently booked for my wife. Waiting for stock to come in from Japan.

If you want to take price into consideration, definitely it will not make sense. For a lower price point, you can get a full spec Civic or even an Altis.

But if you change your mindset and look at things from a different perspective, the Mazda 3 is actually worth every penny, and in some ways, it's actually cheap for what you're getting :

1. It's one of the better looking cars on the road at the moment
2. Top notch NVH on par with D segment cars
3. Premium interior materials on par with some luxury cars
4. Superb driving and handling (it's a Mazda after all)
5. High resolution infotainment system that doesn't lag
6. Memory seats
7. In built TPMS
8. Heads up Display
9. Great sound system
10. 6 speed auto transmission (this will be great for all CVT haters)
11. Better fuel consumption thanks to their Skyactiv technology
12. Currently 6 years free maintenance and service. Service you no need to pay a cent for 6 years

Best of all, it's a CBU unit straight from Japan. So quality will probably not be an issue.

Only downside is the supposed 'cramped' back seats, but you have to go and sit in one to see for yourself. In my opinion, it's acceptable and sufficient. Why people say it's cramped is because almost all car manufacturers nowadays are making their back seats bigger and bigger to outdo each other, until one day eventually you'll be able to play badminton in the back seat and that'll be a feature. 

Anyway, just my 2 cents. Hope it helps with your decision mate