I just came to ask about these. My daughter has dropped hints about getting one for Christmas. She says she can't cook chips properly, either on the hob or in the oven.
I have an Actifry which is brilliant, but it's very bulky and she's not got a lot of kitchen worktop or kitchen storage, so I'm looking to get her something smaller. And yes, it does take quite a long time to make chips from raw potatoes, but only about 10 minutes to do frozen ones.
There's only my daughter and her 8 year old, so she doesn't need one that has a large capacity.
I have read reviews for a couple that say you need to shake the basket during cooking - I don't think I'd want extra faff, so I don't think the Aldi one would be any good.