And if you have, how do you rate them? I have one (a 61GDO) and am quite disappointed with it. It seems to heat really unevenly and it takes ages to heat up. I bought an oven thermometer and was shocked at how long it took. But the most annoying thing about it is the dial for the oven settings - it is really hard to decipher what Gas Mark you are setting it to because you have to line up the line on the knob with a mark on the fascia and it's very awkward to do (anyone who has one will hopefully know what I mean!) We've replaced a knob as well as it disintegrated and they do get incredibly hot to the touch.
Be interested to hear what other people think of them.