I have a Tefal Actifry and a philips airfryer.
I love my Actifry, chips taste great. Takes approx 25-30 for a pan full of chips.
My airfryer for some reason i cannot get the hang of it. The chips will come out under cooked / unevenly cooked. Still trying to work the thing out!
I do rate the actifry, well worth a purchase.