Hi friends I had us idea sim for 5 months and here is my review on it
Network: frankly saying worst networks yoy will only get networks when are at good area forget about networks if u are gone for gone for tour in town area internet speed is not good at all u will recharge for 3g and the speed is 2g that much network problem u have to face if u have guts to buy this sim
Coustomer service: it is good but some time u may have to sufer for long time to contact with your operater and some of them will help u to solve your problems but exception are always there in case of idea because many of them will not talk to u propely
Charge and billing: charges are to high as we consun for speed of data and networks are to bad u can switch to voda it will give u less amount of bill and good data speed and networks and offfers at same price
If u are great data use just forget this sim swith to voda or jio in almost same cost they will provide u great speed and networks