We've mentioned in the past www.speedtest.net which will show you your connection speeds. Here's a similar service for line quality, this time from the sister site www.pingtest.net
This is apparently an excellent result. I did this test because we've rejigged our telephone connections a bit to try and improve overall reliablity and stability.
My results are very similar to yours but then we switched to virgin just before Xmas.
Whilst the installation was far from problem free (and the staff in the sales office are less then useless) now that we have it working properly I am very pleased with it.
We went from 2.2 Mbs (hardwired) to just under 8 (WiFi) which makes a big difference. The biggest nightmare is changing your email address which is often also used as a log-on.
Still working my way through the list.