There are enough bad reviews, I wish I'd looked them up before clicking "purchase". But I'll add my experience. They specialize in finding cheaper fares that continue on somewhere beyond your destination (like NYC->London->Paris might be cheaper than NYC->London) - but consider this: 1) If you search for those fares, you'll find them, too - at even lower prices than kiwi.com quotes. Two minutes after I "purchased", I searched and found exactly the same flight for about 2/3rds the price. 2) I tried to cancel within 5 minutes (they offer free cancellation as long as the ticket isn't booked), but even though I got an immediate "response" ticket for that, they didn't do anything about it until after I got the notice that booking was complete, about 18 hours later. No service integrity on their part, but I understand their motivation to make money off people. Plus, no matter what, 18 hours is a long time to wait for ticket confirmation! 3) Since the ticket is so messed up (to an extra destination; booked through an agent, not an actual airline), it's difficult at the airport, especially during the pandemic when so many flight conditions change quickly. I had to spent an extra hour at the check-in counter since the my prep work for the "non-destination" had changed and I needed to fill out extra forms. Several other people were having the same problem. Even though kiwi.com tells you that you should plan on no more than a few kilograms in a small carry-on bag (since any checked luggage may get lost, or sent to the "non-destination", the whole thing is real pain. A complete waste of time and money.