Philce I have given VM 6 weeks notice (end of jan 2011), I have it free until then.
I will be getting a new adsl isp to replace ukonline when it closes, and have 3G as backup.
VM itself is way too variable and generally is slower for everything except bulk downloading (which itself is only faster mornings).
I have overlapped this and when I will be on my new adsl isp incase I have problems on the adsl and change my mind again.
Brief history of this current stint with VM (ntl) 20mbit service.
feb-may 2010 - high latency/jitter in day, low at night. speeds in day almost 0, often stalled, timeouts, streaming broken etc. unfit for purpose. unable to hit max speed even at 4am.
june-august 2010 - moved to overlay and things improved, speeds generally high, streaming etc. worked fine. 18mbit+ but still had high latency outside of dusk hours.
sept-mid oct 2010 - service was decent, jitter varied but was generally at least ok. speeds stable.
mid oct - now - service declined very fast and on top of this VM introduced traffic shaping which has brought extra problems, had mtu issues, browsing issues, streaming issues on way back, very inconsistent speeds even off peak, on peak starting to get very slow again approaching the 10% mark along with very slow browsing. jitter getting to the point where latency sensitive apps become unuseable. this time the slow speed is alongside VM shaping down p2p, nntp which should be an embarrasement to them.
proposed fix date of april 2011 by VM, likely to be delayed at least a month, I expect service would be adequate from may to august where it will then blow up on the speed upgrades. too much for me.