My pro-fit took 3 hrs. A couple months later, I still felt too stretched out and went back for a re-fit (free). Got a 10mm shorter stem and that made a world of difference. Also, bring your cycling clothes when you get fitted. My initial fit, I was just wearing cargo shorts and was told I should have brought my cycling shorts - I did the 2nd time though.

Like everyone else is saying, don't buy a new stem until you get re-fitted.