Despite having real problems signing up for the 76Mb product I've now been on Vodafone for the last 2 weeks. I have to say I was more than a bit worried about leaving IDNet who were excellent.
Happy to say that I needn't have worried. The switchover went smoothly, my ping has gone down by about 10ms and my download has gone up from 74Mb to 75Mb. Saving around £20 a month too.
So far so good! Hope it continues...