PlusNet are so confident that users switching to them from other providers will be so impressed with their service that they are offering a 90 day money back guarentee for switchers to their services - Even more if you are switching from Bulldog, Freedom 2 Surf, Toucan , Pipex or Nildram ( who are now all part of Tiscali following a recent takeover) you will also get one month free.
If you are currently looking to switch your provider then this is a pretty good deal , Your monthly subscriptions for the first 90 days will be refunded if you are not completely satisfied with the service and you cant say fairer than that
PlusNet offer a range of packages , all of which qualify for a 90 days free broadband trial compare them here