Asianbo,I also use Digi,personally I find it ok,for rm 20 you can get a card and some value inside for usage,just that the expiry date for the card is short(something like 2 mths),gotto top up again to retain e line to be active,use it for navigation most of the time,was at penang to attend a frend's wedding,goggle map for navigation most of the time on the rental car,manage to get to the places I want.The lady whom sell me the card didnt tell me have to de-activate the internet,thus my account was empty as rm3 was deducted daily for internet.
Jus share some shortcut here for digi card as I learn on the way:
*116# for activate internet
*128*3*1*1*1# to de-activate internet
*126# for phone balance
*128# for digi menu