Idnet are a no nonsence isp im my opinion and dont offer all the little goodies that other isp's do.
I made the move from virgin and was looking for a isp with stable connections and good cs infact i called idnet to ask about my usage (because im a gamer) a nice lady answered the phone and said i will get some one to call you back within the hour (what???? this is a isp they dont do things like that surely). Anyways the call came and the guy (who was so helpful and in this day and age "spoke english" im sorry to add that bit but ive had problems understanding people in the past) reasured me that what i needed would be provided by idnet and i havent looked back.
So if you want a no frills reliable connection with good 24/7 support then idnet will be for you.
Im sure your router will be fine and will only need the user name and password changing when you move (if it aint broke then dont fix it). Oh and before i forget my pings are brilliant
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\Owner>ping
www.jolt.co.uk
Pinging
www.jolt.co.uk [82.133.85.65] with 32 bytes of data:
Reply from 82.133.85.65: bytes=32 time=16ms TTL=57
Reply from 82.133.85.65: bytes=32 time=17ms TTL=57
Reply from 82.133.85.65: bytes=32 time=17ms TTL=57
Reply from 82.133.85.65: bytes=32 time=19ms TTL=57
Ping statistics for 82.133.85.65:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 16ms, Maximum = 19ms, Average = 17ms
Idnet everytime (totally biased now lol )