my advice is to definately take it to someone else if your not confident in their alignment procedure/work.

Everytime I have aligned something I would look at what the current setup is and what is "out" of spec. Usually when something is noticeably out, then it tells you something is wrong with the specific part or parts. Repeated alignments isnt going to fix your issue if your problem is part of something bigger ie possibly bent arms etc. Did you buy the car new?