I had not heard about any possible problem with pacemakers etc., but think that induction hobs are absolutely fantastic - the best thing since sliced bread (not that we use sliced bread!). Do go and buy one without a second thought (well, as long as your hearts are OK. Mine isn't but I think I would risk all for my induction hob!).
We have a 900mm Neff induction hob and I, too, ummed and ahhed, unsure if I was doing the right thing (we had a gas hob) in changing a very long held cooking method but it is just amazing. I HATED and yes, I am being all shouty, the dirt of the gas hob and love (I really do love it) the induction.
As others have said, it can be wiped in a jiffy and is therefore permanently clean, it heats up liquids in seconds and turns itself off when the timer is set. This could be a useful function as we age (I was often called out by my elderly mother's neighbours as they could smell gas and late at night had to drive miles to turn her gas off. She was deaf and couldn't hear my frantic telephone calls or their knocking on her door. I was terrified she would blow the street up!).
I digress: DD1 has a halogen hob and when we cook on it we yawn and wait.... and wait. We are so used to the speed of the induction that anything else seems positively prehistoric.
We already had a set of stainless steel pans so didn't need to change any but if you do need a new set, they will last forever.
Please don't think twice and order today!
PS. I am not, or related to a Neff salesperson!