I have just read the router review in Computer Shopper. The TalkTalk free router matched paid for ones, HH5 was quite good, Sky's was average but Plusnet and I quote
"Even if PN is one of the cheaper ISPs out there, that's not an excuse to supply customers with such a poor router".
Fortunately there are plenty of us whose requirements are minimal!
(I voted out in 1975 and nothing has changed my mind since!)