Has anyone used Sky Auction .com

It really does depend on your own preferences. It's good though that you're researching before you do go for it. Honestly, I've tried using their services once, and it was good so far.

We have had great success with skyauction all the travel plans went off without a hitch our trip was to Mexico but inlaws also use skyauction they
have had 3 trips one as far away as Turkey. They also say there trips were of great value and went off without a hitch.

Yaleguy