It, overall, was not the worst experience I have had in my life. I bought tickets for an 18+ show, and had to sign for the package. Suffice to say I was not home and could not pick it up in the city at the UPS store so it got sent back to their offices. They contacted me, left me voice mails, and when I called back I think it was a very organized system. They made it back to me in time, and while I have not seen the show yet, I did get the tickets in time.
Now, the prices were in United States currency, and as a Canadian when my card was charged more than advertised I was alarmed. Since the show is happening in Canada. They were marked up quite a lot from the normal $80.00 CAD to the $93.45 USD Which is $ 123.33 CAD That is a huge mark up from the original 80.
So if you want good, affordable tickets don't buy through TicketFly. Usually the venue will have a link to where you can buy tickets, that aren't marked up a boat load.
But they were nice, and professional. So overall not horrible.