Ah this looks great - air poppers are probably pretty similar, but the thing that stands out to me is that there is a huge half sphere transparent cap. All the ones I've seen up until now were more like vertical devices, where the popcorn was released into an external bowl after they get fired up into the air.
I mostly use microwave popcorn, simply for the fact that it's easy to get an even distribution of flavour on the popped corn, whereas with the air popper, pouring something over after it's popped can be real uneven.
You say you pour some olive oil into the machine prior to popping, how do you prevent olive oil from getting into the hot air vents and damaging the machine (say, when you're wiping out the inside of it after popping - I imagine be easy to slowly wipe small amounts of oil into the vents until there is internal damage after a few weeks)