Disclaimer: i was asked by DashBargain after an order to post a review here:
Ususally i used https://thebigcoin.io for bitcoin purchases, but it is currently out of service. So i found dashbargain and bought 2 flight tickets via them.
The service was very fast and helped me with custom questions that i had. for example with thebigcoin they usually do the checkin for you. That means you don't get anything from the flight provider, which is a little bit unsettling. They also share the account credentials with you, so that you can do it yourself, but i have to say i found the approach of DasBargain to just put MY email into the form better. With that i am sure to have everything and can do the checkin myself.
All in all i'm happy with my first purchase and will likely continue to use the service also in the future.
The only negative issue is that their support email seems to be broken or on some spam list. my emails always get rejected, however it seems they get through nevertheless. a short statement from them would be nice.