Before I start talking about fly bridge stairs let me explain what has happened to the name of our new Fly Bridge boat. The American Boat and Yacht Council sets recommendations for yacht nomenclature and basically says we can call the boat by a number that represents to longest molded part, which in this case is the hull. When the 52 foot hull design was made we, for market competitiveness purposes, opted to call her a 52 footer. That's how long she is on deck. So here we are a few years down the line and 20 hulls later and we want to introduce anew model based on the same hull design and to avoid confusion we are opting to call her the 54 Fly Bridge Sedan because that's how long her hull actually is. So, if you are looking for the Sabre 52 fly bridge you will not find her.
A big topic on fly bridge boats is the method of getting people from the lower decks to the fly bridge. i.e. the stairs. I've seen far too many people quit boating or spend their days seated in the main salon simply because the stairs on many sport fishing convertibles, are too steep and un-people-friendly. So when it came time to design our stairs it was clear that a spiral was the only way to go and our engineers have come up with a beautiful piece of custom hardware for the task at hand.
So the answer to the question on how easy it is to scale these stairs is "very easy and very comfortable."