My experience is that when it's good it's no worse than before, but there are 'spiky patches' where it gets randomly laggy (ie, no particular person, just everyone gets patches of low-rate or some big spikes). It was more like that at this Friday's event than the previous one, for example, a few people mentioned it.
It's not dissimilar to the start of a DDoS though, so who knows what issues the host is fighting behind the scenes - might be that we're complaining about spikiness when we've actually been spared an outage.