Beautiful looking but a disappointment

It's a beautiful looking cooker and the hobs are great. It looks like the Ferrari of cookers and comes with a hefty price. Aside from that, its disappointing, more like an Alfa Romeo. Firstly, the thermometer is 'ornamental' (as described by the third engineer who came to look at the problem). Second, there are no temperature markings between 100-150-200, so you have to try and guess where a specific temperature will be. You would think that would be fairly straight forward with the attractive thermometer next to it, but it will actually show the temperature as high as 240c. We were told its a common problem so we will hopefully find another cooker. Such a shame, I hope they sort this problem out as it makes no sense whatsoever to have a thermometer with a mind of its own.