Any user with any understanding of how these things work should avoid any ISP that offers unlimited contracts if they have any real choice.
Which is one of the reasons I went with AAISP. The other being that they charge proportionally to your usage (use more, pay more). So 2-3TB a month (per the OP's initial post) is going to work out insanely expensive with them (by my calculations, 60 off-peak units a month which comes in at £234 a month, just on units alone, not including line rental or any provisioned ADSL/FTTC service charge). But the plus side is that there is very little chance he/she will opt to go with AAISP due to this, so AAISP will not have to deal with 2-3TB per month on their network, or indeed any other users like that - leaving their network uncongested and running at full speed for everyone else.
Which is what I will quite happily pay them for.
To the OP: Do not take this personally, but 2-3TB a month is obscene. For laughs, I worked out how you could sensibly fit that onto an AAISP provisioned service. So, AAISP have 4 hours every morning which they class as night-time special. This is charged at a rate of 1TB/unit. 3TB is approx 100GB per day. So to download 100GB a day with AAISP at the cheapest possible rate, you'd have to fit that into this 4 hour window. That means you would need to be downloading at 7MB/sec solidly, from 2am-6am every day. So you would need at least a 80/20 FTTC service and be yards away from your nearest cabinet for a start, to even get that. Assuming not to use the connection outwith this time slot, that means you'd be chomping through 3 units a month just from using the AAISP night-time special rate at 7Mb/sec constant download.
I've had a quick look at my bandwidth records for the previous 12 months and I clock in at about 1.5-2TB per year
. So if Sky/TalkTalk and the others are happy to take on customers like you, I'm staying well clear of them.
Edited by mixt (Thu 22-Aug-13 13:41:35)