I am using this network since years and till now I haven’t we will faced any major issues related to it.
If we will talk about other networks present in the market then definitely they provide much cheaper packs but you will not get any consistency in their network.
BSNL provides the best package for high cosumption data user.
Even their post consuption speed is als good means if they say it’s 512kbps then they will provide that speed.
Customer care is good enough to clear off the complaints.