Well, i'm using a
Saitek X52 Pro plus the
Pro Flight Rudder Pedals... and i gotta say, it's awesome

if i had to give it a rating, i would give it 10/10
about the realism of the controls, that depends on what kind of aircraft you're flying... for instance, for military aircraft, or helicopters, this unit is absolutely perfect... however, it lacks realism when it comes to flying commercial jets or any kind of aircraft with a yoke... so it is somewhat specialized... but any control system that's worth anything will be specialized... and it's up to you to determine which is the kind you need
about the feel, i can't say it 'feels' like a real aircraft stick... the travel range is not the same, since real sticks come up from the floor, and there's no force feedback... BUT, the precision of this unit is astounding, and it did improve the responsiveness of the sim in general
also, having all controls where they should be, add a lot to the simming experience, having your throttle on the left hand, the pedals at your feet, does increase the realism and overall 'feel' of the sim, even though it won't have the tactile accuracy to mimic a real aircraft
about durability, the X52 pro looks like it's built to last... Saitek offers a 2 year warranty, and they advertise about how the non contact sensors are much longer lasting than conventional potentiometers, which i can't not agree with
now, the software... that's the high point of the whole thing... the SST as it's called, is very flexible, allowing you to create profiles for each game (or even each aircraft) and you're able to switch between profiles in-game, which i find quite cool...
other than that, the profiling is very powerful, allowing you to even map axes as buttons, on several different modes... i have even made a profile for Photoshop, the throttle axis controlling brush size, and the rotaries controlling flow and opacity... note that photoshop does not have any kind of joystick support, so all the set up was done on the SST software
overall i couldn't be happier with my control system... i'd only advise you, since you're training to be a real pilot, that you get the
Pro Flight Yoke system, instead of the X52... it also comes with the same software, but will offer much more realism when you're flying GA aircraft of jets
Cheers