I own several Parker saftey razors. I currently have the Variant, Semi Slant and 74r. I bought this 56r because well I obviously have a collective personality lol. Anyways I bought the 56r in graphite. It looks great with the Graphite handle and chrome accents and head. The three peace design is my favorite since it keeps parts count down to a minimum and it's very easy to maintain. The base plate is super easy to wash out during use, the handle has knurling on it like most newer Parkers do. This means you can't possibly drop this Razor with wet hands unless your fingers are made of glass. The weight and balance is perfect for me (this is my new favorite Razor) the best part is how nicely this Razor glides! It's so smooth! I used it with a Rapira Supersteel blade and wow it was such a nice shave! I also used the Parker Shaving soap since Shave Nation Carey's it. I figured why not, that soap BTW works pretty nicely.
So the 56r is a nice mild Razor, it's very easy to use. My 74r and Semi Slant are both more aggressive Razors which some people complain about. The 74r I got used to in a few shaves, get the technique down and it'll perform really well. The Semi Slant takes some getting used to. It's aggressive but doesn't feel like it, the Variant I also really like it's a bit heavier then the 56r is, the adjustability that the variant has is very nice.
Getting back to the 56r its a great razor. You can just pick it up and use it. For me there wasn't any learning curve.