I love my Actifry - use it every other day - and I use frylight instead of normal oil. You only have to spray lightly round the pan. And if you buy Rooster potatoes you don't need to bother washing & drying the chips as they come out lovely just as they are.
Also try chopping sweet potatoes up into 1 inch wedges (peel them first) then sprinkle with hot smoked paprika, spray your pan, then bung them in for about 40 mins - they are sooo fab - not crispy but sweet and spicy, soft in the middle and chewy at the pointy bits!
Enjoy!!!!