2.14%, meh 5 year fixed on 1.89% (May 2017 set), I expect the rates to rise in the next 24 months. I can pay off 10% per annum if needed.
My advice (which I sometimes follow) is to pay it off as soon as possible. Boring, but long term good.
I have managed to pay off £30K in the last two years off the feckin' mortgage, still £185K to go