I have tried most of all giant ISP like airtel, hathway & bsnl but their service is not up to the mark.The speed what they provide is really not good and they charge so much price.But from last 1 year I have used Beam internet the speed of it is unmatched from other iSP.
When I had connectivity issue the technician came and resolved it soon.My work gets faster using Beam internet now. So I recommend to use beam fiber connection instead switching to other ISP by seeing their brand name.