I have recently returned to PN from O2 and I am regretting it.
On O2, using the TBB speedtester, I was on average getting 12716 Kbps downstream and 1022 Kbps upstream on PN it is more like 10221 Kbps downstream and 371 Kbps upstream. I understand why the upstream speeds are so different but the downstream speeds are not that far apart. Irrespective of what those speeds are, on O2 I remember on occasion getting over 1mB/s but I am struggling to get 200kB/s on PN. I appreciate this is not a scientific test but after you have downloaded a few files you get a general feeling as to how fast it is going and O2 seemed to zing along but PN is crawling.
At the weekend (around midnight) I downloaded Win7 SP1 from www.softpedia.com (on PN) and as I say struggled to get 200kB/s and it failed half way through a couple of times so I searched for a download manager (Internet Download Accelerator) and it worked well and got me up to about 450kB/s - and worked first time!
Is this simply traffic shapng or is there something else at play?