The ones like the other week happen infrequently really. I can recall more outages with virgin media for example or sluggish performance, especially with DNS resolution. Nothing of that magnitude here so far. There was that one major outage months ago but that was related to a rack power issue if I remember the statement that came out after it was sorted.
Otherwise a solid service, and one machine downloading something at 100MB/s does not seem to impact the machine gaming etc too. Plus the symmetrical upload speed has been hugely beneficial as I upload to youtube a lot and an average video can be 20-30GB.