They'll need to I suppose as the standard hub is reckoned to be a real crock.
I upgraded to 50Mbps and got the superhub. It has sufficient basic functions for me but there are no "nice" ones like SNMP, QOS, DynDNS support, DNS override, telnet interface etc. etc. I once had to reboot it for my mobile to be able to connect but that seems to have been a one off. After rebooting it I also have to reboot my VOIP ATA box for some reason (to force a renewal of the DHCP lease would be my guess). This was never needed with my old setup. The N wireless seems to be weaker with my HTC Desire (G only) than my previous router was but it still connects well enough and everything else is wired.
The biggest failing is that to avoid packet loss within the router you have to turn off the SPI firewall. I've seen reports that SYN flood detection causes problems too so I've turned that off along with UPnP which I always do as a matter of course.
Since the upgrade I've had one short (minutes) outage and seen the odd T3 reported none of which happened before to my knowledge but this is all probably just coincidence.
If you can't fix it with a hammer you've got an electrical problem.