NOTE: This review is for P3Dv5.2 which is not supported, but works fine without any voodoo. SECOND NOTE: There is an amazing freeware Total Overhaul mod (got mine at avsim.su) that I feel is a necessity. (It even has an installer.) The CS 732 was always a gorgeous airplane, and the mod actually makes some graphics improvements. But more than that, it provides tons of useful functions to the previously useless computer. Weights, states, fuel, callouts, automatic (or manual--your option) speed bugs and EPR settings for different flight phases, descent assist... what doesn't it do? It's not strictly realistic, but makes flying this thing a joy. AND the Total Overhaul Mod gives you options for adding third-party avionics upgrades unavailable before. So, my freighter version (yes, all the expansions work) got a Reality XP Garmin touch screen.
This is my very favorite short-medium haul airplane. I like it even better than thier new 737 Classic. The 732 is old school, so be prepared to fly it, and learn what Control Wheel Steering is, because you're going to be using it a lot. Probably my favorite landing in flight simulation was using the flight director through a blinding snowstorm into Ushuaia. Unless you install one of the optional upgrades, everything else is radio navigation doing your best with the rudimentary autopilot. I can't say enough good things about this airplane. The Milviz 737-200 is a worthy competitor--a bit grungier and has a gravel pack option--but the weather radar crashes v5. (I also have it, and installed RolansRadar for Active Sky.) Between the two, though, the Captain Sim gets my nod, especially with the Total Overhaul mod.
There are also nearly limitless liveries available. I don't think I've found a place to fly where I can't use a plausible livery.