All bike fits are not created equal.
Every shop offers bicycle fitting on its list of services. Fitting certifications usually requires less than a week’s worth of training, training that allows someone to hang a “Certified Fitter” shingle on their wall.
They’re not a dime a dozen, but anyone that works at a bike shop can attain one.
But, bike shops with employees that have in-depth education, substantial experience, and real-working knowledge to provide high-quality fits, those are few and far between.