Depends. A good fitter can really help get you dialed in, especially if you don't know what to look for yourself.
However, the guy doing this "fit" probably doesn't fall into that category.
OP, why did you buy it from a guy that doesn't even stock road bikes? What would make you think he even remotely knows what he is doing?
I'd like to get fitted by a good fitter. I've tweaked my bike quite a bit and what I thought was great 3 years ago is sooo much better now. This include tweaking saddle height, stem length, handlebar type/size, cleat adjustment. Maybe I want to prove that I've done a great job myself but find it hard to want to shell out the mula for a fitting $$$ Then again, maybe I have it all wrong. All I know is that my performance is up and I can ride in my drops for a quite a while now.