No particular features!
Just one that operates consistently & reliably!
Just read this. Does your HomeHub not operate consistently and reliably?
I have the homehub on my fibre package. It has been plugged in for well over 6 months without a turn off. It never faults me. The wireless on the homehub is about as good as you're going to get too due to the nature of wireless. Even the £100+ routers have a similar range I have found.
If the HomeHub is causing you grief it might very well be faulty. They are usually very stable bits of kit. Might be worth considering that it could be resolved for free by perhaps a new hub depending on your issues?