Be very careful if considering avonline as a provider.
I have utilised their service for two years, until July this year it was good. High speeds and consistent, typically 15 to 20 meg downloads,
However since the introduction of unlimited download packages the service levels have plummeted to speeds below bt.

For the last month I and other users are typically getting between 1 and 2 meg download speeds during evenings and weekends. This is no better than my adsl provider but at 4 times the cost.
This is despite avonline continuing to advertise 20 meg speeds and all the benefits. This is now a myth.

Avonline seen totally unable to do anything, they are totally dependent on the satellite provider.
Their technical support team is overwhelmed with calls from existing users wondering just what has gone so wrong.
Please note I am not a heavy user, so have not been subject to the so called fair usage policy.
A real shame,
Be careful