I was fitted late last year and I loved that I was finally getting fitted for clubs as I've always played and adjusted to playing stock clubs off the rack ever since I was a junior golf. While I loved the experience, I think there are some things wrong with it, at least from what I experienced.
-My old iron set were miz MP-32s which has a 35 degree loft in the 7 iron. The fitter tried best he could to convince me that I was hitting the Titleist T200 farther because of the technology and fitting rather than by the loft even when I brought up that my 6 iron had the same loft as the 7 iron.
-Even though I was at a golf course on the range where I could hit off of grass, their fitting sessions were done by hitting off of mats. For me, this changes my swing a bit with my irons because I tend to want to pick the ball off clean from the mat rather than make a divot and turf interaction doesn't come into play.
-I just came from playing 18 holes so I was a bit tired during my fitting and my iron shots had a slight fade to them rather than going straight which is my normal shot. So I knew I wasn't closing the club face at impact likely because I was getting tired. Because of the fade, the fitter fitted my lie angle at 2 degrees upright to correct my fade even though I told him that's not my normal shot.
Did I just get a bad fitting experience? The fitter was very nice but I felt as though I wasn't fitted properly.