Just switched from Plusnet to Sky. Advertised average download speed for my area 59Mb. When I have checked the speed, (roughly every couple of days), the speed has been 71 -72 Mb on wifi. Wired hitting almost 80 Mb.
Three bonuses; A) it's cheaper than Plusnet, B) the download speed is faster than we were getting from Plusnet, and C) so far (touch wood) we have not had the drop outs we suffered with Plusnet.
I should add I have no idea why B & C should be different with a new provider, but so far no complaints.