Hi, I've been offered a really good deal on a Siemens Ex875LX 34E hob with built in ventilation, but I can't find any reviews/comments from owners anywhere on it. Does anyone have one? Would you recommend it? I've also been looking at the Bora Basic, and Miele KMDA 7774 FL, but the price I've been offered on the Siemens is a real bargain, I'm wondering if there's a reason why! If anyone has any experience of the other two products I'd be interested to hear feedback as well.  I can find some revi