I am not really a connoisseur of French fries, but here is what I felt:
- They taste very similar to deep-fried French fries
- They were crisp on the outside and soft on the inside
- You save quite a bit on oil (about one tablespoon for 1lb of potatoes), so it may be worth it if you eat a lot of French fries.
Some other thoughts:
We are able to use better quality oil (cold pressed virgin sesame oil, for example).
We also it to air-fry vegetables (Zucchini with olive oil and paprika), which was pretty good. But I can't say I have eaten deep-fried Zucchini.
We made Paneer Shashlik out of the Indian recipe book. This was really no better than what we could have skewered in the oven.