I bought this to practice IFR flying in Flight Simulator X. It works even without any of the included software and has fairly smooth movement. The elevator control can be a little imprecise at times but the aileron movement is smooth, though limited – the most it can tilt is approx 45 degrees, far less than in an actual plane. The elevator travel is similarly limited, and the yoke itself is oversized when compared to any of the small planes I've been in.
The throttle quadrant I have no complaints about. It works perfectly with FSX, the switches are great for gear/flaps/cowl etc and you can even simulate reverse thrust or prop feathering by mapping the detentes (the part of the axis below zero). You have to apply extra pressure to go down to these, which is good because you'll never do it accidentally. The detents show up as buttons in FSX and you'll have to map them using a third party program like FSUIPC. The throttle quadrant can also be attached to it's clamp in something like four different ways, so you've plenty of options.
Overall this is probably the best Yoke on the market, it has a metal shaft unlike some of the cheap plastic ones out there, and it's separate throttle quadrant allows for greater customization than if it were attached. I've bought another quadrant for multi-engine simulation as well. it's not perfect, but for the price you won't find better.