I bought this oven as an American student studying in Europe for a year. My apartment does not have an oven and I wanted to bake for a holiday meal with nearly 30 guests. This oven worked perfectly. I baked an apple pie, brownies, and roasted two 6kg turkeys and everything came out perfectly cooked, very evenly with no burnt or under-cooked areas. The size is excellent, you can easily fit full sized dishes. However, it is still small enough to transport; I took it with me to a rented room where the party was held and finished baking and warming dishes until dinner was served.
Since I couldn't find the interior dimensions online, I'll add my measurements here. Inside, the oven is 37 cm wide and 29 cm deep. With the rack on the lowest level (there are four levels), it leaves 22 cm tall for your food. One 6kg turkey fits easily on either of the two lower levels. The only trouble was that the weight was a little heavy for the racks, so if you are not careful when inserting it into the oven, it can bend slightly and slip out of place. Because of this, I found it easier to put the rack all the way in first and lower the turkey onto it gently.
I'm very satisfied with my purchase and looking forward to being able to finally bake in my student apartment. It was so convenient that other students are already asking where I got it and if they can have mine when I move home.