70% on one bad day. In all honesty, noting that the CS-commentators pile onto any delay, the days where there are no comments - of which they have been many in the last few weeks alone - are indicative that the service is pretty good. Which marries up with the TOC stats of course.
I do wonder why there is such a vocal minority on the forum that love to hate the CS? I think the service is fantastic and great value personally. For me it is time efficiency of the service, the reliability (I have been delayed many, many more times on flights than on the CS), the fact it takes me as good as door to door and is cheaper than BA Business Class with less hassle if you factor in airport travel. I can absolutely see why it doesn't work for many - but then why take such an interest in the thread?