Booked a flight with them in a single package using two carriers. The first flight was delayed by two hours so missed the connection. Kiwi.com told me to take the fight anyway so I was stranded in a third city in another country. Then Kiwi.com's only solution was to make me buy another ticket at a higher price than the original ticket [in the range 450-650 euros]. The airline returned me to my home city so I could book a much cheaper flight, but Kiwi.com then said that this invalidated my return ticket too. I am at home having now had to spend over three times what I paid Kiwi.com, and Kiwi.com are so far refusing to refund me even though they did not get me to the destination I paid for at the agreed price. I am also out of pocket for accomodation and a tour I booked. DON'T RISK USING BOOKING.COM.