It took me at least a week, 30-60 minutes a day to have some sort of control. Do try what the guy said about the mild setting on the transmitter. I assume (I know, I know) that you have the turnbuckles connected to the SHORT arm on the swashplate??

 Did you actually see the guy at the hobby shop fly it, or did he just check the settings. If you did not see him fly it, it may still be F**cked as you first thought.I think you need a local friend to help you in person. Look for a local club and ask if anyone will assist you. Worked for me, although I had already spent an honest 20-30 hours setting up/ replacing parts on my Blade 400. If it make you feel any better, I still can't fly it.....LOL Only spent less than an hour attempting, maybe only 45 minutes. BUT, I WILL KEEP TRYING BECAUSE I WANT TO ACCOMPLISH THIS. They say flying a heli  is like balancing a marble on a plate of glass. Maybe you should start with that...LOL Just kidding.

I'll still buy it when and if you give up. Maybe you're just not a heli guy? I can't play the piano, or do brain surgery. Hey, thats a thought, BRAIN SURGERY............ANY VOLUNTEERS???