Most PN customers will agree with you re Hub One, so they have acquired used BT HH6 -- still plenty on the auction sites. I paid £15 for one two years ago and it's excellent, steady 37 to 38MB on my 40/10 FTTC. First-class thread to set it up on PN forum.
I bought a fancy router once, made no difference to ADSL performance and burned out wifi card just after two yrs when the warranty expired. £80 up in smoke ...
I have been using a Hub one for a while, a few weeks after my Zyxel gave up and someone said not to use my TP link. So about 4 months or more. It is fine. Wi-fi seems ok, The UI is sparse, I can't do a fixed IP for the devices or rename them,
But I think there is something wrong with it now, the last week or so it has been resetting itself now and again. Mind you it is way out of date firmware wise 13/09/17
I don't really want Plusnet to send another one to me as they may want to extend my contract, so if I can find it, i may put the TP link back in action or maybe get more modern one that can also be used if i decided to go Zzoomm.
Adrian
Desktop machine Ryzen powered with windows something or other.
Plusnet FTTC