Idnet simply works; no throttling, no congestion, no problems.
Theoretically there is no support outside weekday office hours, but that is not what happens. Send an email or leave a message on their 0800 support number out of hours and you invariably get a response before the office re-opens. More than that, support is from someone with a real name, someone you can ask for again, someone who will actually phone you back. Someone who is not a script kiddie,someone who is prepared to deal with your problem at your own technical level. The price makes sure that 200Gb a month downloaders go elsewhere.