i m on idea netsetter for last six month (am from pune) a whole lot will depend if you are getting good network or not. and yes the load on the network
usually me, during 10 in the morning to about 10 in the night, i get about 90-120 kilobits/s, and after that speed slowly climbs to 210 kilobits/s or so. speed will always keep on fluctuating, but checking emails and stuff it is reasonably good