The speed is very good.usually speed for downloading is 4-5mbps which is great.i would say it is great and the 4g internet packs could have been more cheaper.the speed also varies from location to location so it is advised to first take a demo then purchase airtel 4g.the airtel also provides broadband and usb modem at 4g speed so you can also choose from them also.there may be some improvements which could be done.there should be more variety the prepaid plans.unlimited data plan should be provided but since this is just starting of 4g in india its good