I got one after taking them up on an offer to to go 60mb (this includes the double your speed, so got that early for my region) as the person said eariler you will get a mixed response.
It will depend on what router you are going from, if its an old one the superhub will probably beat it hands down, the superhub is a good router from the tests I've run but it couldn't beat my existing one, most people will like what they get.
The deciding factor for me was my existing router has 5GHz connection as well as the original 2.4GHz, a scan with inSSIDer showed the traffic in my location, and my router is the only one currently using the upper bandwidth.
Testing across several types of machine with the superhub and my router the hub came second every time but not by much , but when using the 5GHz range this had a significant step up from both of them, hence my superhub is now set to modem only! (Speedtest today on my wireless laptop 63mb)
Note virgin engineers have only been carrying the new superhub as a replacement for any that go faulty since the turn of the year, I have been told, so any that fail will get the superhub as a free replacement.