If you have time to wait it's a great deal
I admittedly booked outside their business hours (+7 GMT I think). But it stll took longer than the 2 to 6 hours until I received the ticket. It is a good deal if you book early enough. Just be prepared that it can take more than 6 hours until you receive it. If you need it quickly find other options. If you have plenty of time: it did work and is cheaper than others. Also: I got reimbursed because it took so long
