I am wondering if you have this dizzyness feeling if you drive another 2011 Camry.... This would help identify if the problem is you IN the Camry or your Camry specifically. If it was your Camry specifically, then you could check out, chemical smells, suspension, loose steering, tire issues, sway bars not being connected properly.. I'd try this first before I lost all faith in Toyota.

Also, don't confuse Toyota, with the Toyota dealership, meaning, that the dealership might not be a good dealership but that initself doesn't make Toyota bad. Yes they do represent Toyota, but so do 1000 other dealerships that may do so in a better way.