Lights and Sounds-

The sound in this airplane is really quite superb.  I especially love to hear the reverse thrust spool up.  The two engines types are distinctly different, and the quality of the sound makes for rewarding listening.  Inside the airplane, there are sounds for doors opening, cockpit announcement (which you can activate by clicking a button on the overhead), landing gear, etc.  Normally I'm not used to hearing much more than the grunting of a nice piston engine, but after the jet engines became background noise, I enjoyed hearing the life of the aircraft around me.

The lighting is, again, very well done.  The passenger area looks great at night, with soft yellow light coming from the top and sides of the airplane.  In the cockpit, there are the lights that the pilots use, and these 'come on' when you turn on the lights interior lights.  There are controls on the glareshield and overhead which control all of the different interior lights, but FSX only provides for one actual light, so it's all of the lights or nothing.

When flying at night, the airplane's windows are lit up, and you can see the reflections of the light on the wing.  There are a ton of lights on the forward landing gear, and there are rays of light cast in every direction.  However, when you turn on the landing gear lights, they come on, but don't illuminate all of the area that it seems they would.  It looks like there's a dark patch that should be lit.  In general, the lighting of this airplane is just about standard, and there's nothing too special.

Final Word-

While I can't compare this addon to other similar packages as I don't have much experience with complex airliner simulations, I can only tell you what I think about the aircraft itself.  For that matter, I consider the Captain Sim 757 to be a highly legitimate competitor in the market of such high-intensity simulations.  It seems to me that Captain Sim is turning over a new leaf and is going from the world of simply having nice textures to the world of outstanding aircraft ; that is, they're considering all of the aspects of what a pilot-to-be might look for.  There are plenty of little goodies, like all of the things on the animation panel, and all of the clickable things in the cockpit that make this not just a heavy-duty sim, but also a product that can entertain and prove a certain amount of attention to detail.  I think that I can safely say that you should consider this airplane very carefully if you're in the market for some serious, heavy iron flying.