Baking a pie in air grill / electrical convection oven?
I use a similar device. It was an unused wedding gift that I finally pulled out when my oven door hinge broke...

It does have a tendency to overcook the top before the rest is done. It also seems to cook quite unevenly. The way I get around the uneveness is to rotate the top as it's cooking.

I've baked a few times in it (bread loaves, scones, muffins and quick breads) and haven't really had any disasters but you do need to keep an eye on it.

What you want is to put the item being baked as far away from the element as possible. I always try to cook on the bottom shelf which is fine for things like scones and muffins but bread / quick breads still reach a little high up.

My suggestion is to get an extender ring which pushes up the lid somewhat giving you a greater distance between the heating element and the food, hopefully leading to a more even cook.

I haven't actually tried the extender ring because my version didn't come with one and I haven't had much luck finding one in Australia for a reasonable price.