I recently purchased the Cessna 441 Conquest II by Flight1 for FSX.  I just want to say that if you're a fan of twin engine props, this payware aircraft is a must have.  The VC and 2D cockpit views are both fantastic.  I was also impressed by the flight dynamics.  The only gripe I have is the lack of textures available for the aircraft.  The 441 only comes with one texture, which in my opinion isn't that flattering and I could only find one add-on texture.

So, if you're in the money for a payware aircraft, I highly recommend the 441 Conquest II for FSX.

It sounds good.  Nothing extraordinary, but at least it's sound isn't aliased to the default baron or the king air.  It sounds like a Cessna twin engine turbo prop.