We recently had an education session at our Stated Meeting that covered the process of examination when attending another lodge. Our new WM had found out that very few of the brothers in the lodge had ever visited another lodge. After going over an emulation of the process (I was one of the "visitors" in the emulation) the brother doing the session gave a "pep talk" about visiting other lodges. He related how he had been one of the first Masons from the GL of PA to visit a PHA Lodge after that was possible in PA. He didn't go much into any specific differences but the one comment he had was "Those guys have their act together, we could learn a lot from them."
I hope to visit other lodges soon and for sure will include PHA lodges. I think it is a good idea to be in contact with the secretary of the lodge you are planning to visit to know what the expectations are as far as dress code, meal fees, and other customs. Being in contact ahead of time also gives them a heads up that they will have to examine someone, which in some lodges apparently is not often done.