Alliance broadband has good internet speed, no problem with the internet speed but the staff working under them are really poor. Rest of the bengal packs are cheap. There is sometime some problem with the connection once or twice the months and many time they reduce the speed with no proper notice. But overall its good connection compare to other ISP. the main pros of alliance is that its has very good peering speed which let u download file at high speed( I mean in MBs).