If you need a plan with unlimited calls and SMS then yes, but the data is only 3GB, which is quite little for the commitment fees you are paying.

No hidden charges but you need to bear a few things in mind: -

1. There is a 6% Govt tax
2. Apply for e-billing to waive itemized billing charges
3. Does not include calls/SMS to overseas numbers
4. Does not include SMS to those five digit SMS numbers that you send to register or participate in various contests, etc.

If you've been with maxis postpaid for over a year and have a good payment record, they will most likely waive your advance payment. I got mine waived even though I'm not a maxis one club member. For prepaid customers though, I'm not sure.

As for the data, I think it depends on your usage. I've been on 2GB for more than a year now and never exceeded the quota before, although did hit 80% by the last week a couple of times. I have UniFi at home, so data is mostly for browsing and Whatsapp/FB during day time or when I'm out.

i think most maxis centres already have ample stock but releasing it slowly on daily basis.