So any recommendations for around £500?
Bosch PWP631BF1B (£399-£487) scored 82% in March2018 Which test and looks pretty smart, in fact Bosch & Neff induction hobs seem to consistently score high in Which tests at or around your budget and below. (if you’re interested, I’ll happily send you the full Which test report for the Bosch)
Clicking and humming is pretty much par for the course. Don’t forget on a gas hob, you get clicking from a gas lighter to get a flame and gas isn’t silent, it’s not that much different.
Re fussy/faffy controls, all the AEG hobs appear to have individual controls for each zone, where as the Bosch and Neff are one control you switch between zones. So if it’s a big deal then buy AEG, personally, like most stuff of this nature you fairly quickly get used to the different controls, all IMO tho.