I had to buy a replacement hob quick after dropping a heavy object and cracking the glass on my previous unit.
This does much the same job as any rival on the market. It does start to scratch after a while and having 5 heat seatings per hob doesn't give you as much control as you might like over your cooking temperature.
But if you need something cheap-ish (and I didn't trust anything too cheap) this will probably do it for you.