Booked a large people carrier from the UK through Emirates and got a ok deal.
We initially booked for 3 weeks and then I was able to extent by another 2 weeks. It is not cheap for sure but we were really happy with the car we got and the service from Sixt was prompt and easy. Staff on phone and in person were helpful and easy to deal with.
Easy pick up from the adjacent car park and drop off was really easy too. We paid the for the full insurance cover which was totally worth it as we got the side of the car scraped. But no extra payment needed.
Would use again but as I say they are not cheapest around.