We aim to provide a service of at least 30 Mbps download and 15 Mbps upload for at least 95% of the time. Actual speeds will often be greater than that but at times of heavy usage speeds may fall below the target due to network congestion.
[Boring but important technical note] Not all speed tests are equal, nor do all of them measure the same thing. In simple terms, they saturate the capacity of a link in one direction for 30 or 60 secs and then in the other direction. This is not how internet traffic works. Speed tests provide, at best, a very crude indicator of download or upload capacity. Further, wireless networks function differently from fixed line networks. We optimise our network for real life performance, not to look good on speed tests. In particular, we focus on providing predictable and rapid interaction for services such as internet browsing, Skype, Voice over IP, etc. You may regard this as special pleading, but it is also true.