Tried an X55, while the joystick was nicer I didn't like the fact it didn't have button on the stick itself and that the throttle just wasn't as intuitive to use. Not having buttons on the stick means that you have to stop manuvering while you activate them.
Eh? I use an X55, and it has loads of buttons on the stick... What is it you are referring to?
Having said that, I'm not very impressed with the build quality of the X55. I only use it for E: D, and the throttle adjustment (you can change the damping) is awful (you can have either really loose, or almost impossible to move - there is no in-between!). I also had to dismantle and grease the flight stick to stop it creaking and jerking (not very good for smooth flight, that). When using the twist of the flight stick, the whole stick flexes slightly which is also a minor irritation.