I'm sure Kiwi works well if your flight runs with no issues. But the minute something changes, you are going to lose a lot of money. If an airline changes / cancels your flight, they offer you a full refund immediately. However, if you've booked with Kiwi, they do not pass on this refund to you. My BA flight was cancelled and instead of a refund or putting me on another flight, I got nothing back and ended up rebooking another flight directly with BA. I lost almost £200 - which would have gone straight to Kiwi, as BA would have refunded them. This company is a scam. Do not use.