CH lasts forever, I've had mine for years. I don't know about the logitech stick so I can't compare, but here are my comments...
CH stick, has medium spring set. Microsoft sticks are much softer to move, but thrustmaster is stiffer. Only logitech stick I ever touch was years ago, but if I remember right it was on the soft side. So the movement may be a bit stiffer than your use to. If your a "smooth on the stick" type of flyer you may never notice.
CH pedals, I have the "Pros" rudder movement is sliding back and forth, with the "toe brakes" with a "gas pedal" type movement. In my simpit I had to add a piece of wood to angle the set a bit. This is only due to the seat being a low seat. Sitting in a chair should give you the height to work them with out tilting them. Expect to take a few weeks to get use to flying using your feet, but once you get it, it is much better than a twisty stick.
CH Throttle, I think if you can afford it, get them. I have had to do some traveling over the last few months for work, and most hotel don't like you hauling simpits into their rooms. While the company laptop does play Aces, I've been forced to use a Saitek "twisty" stick. It has taken me weeks to get the rudder tuned half decent, and I am no where as accurate with my rudder use as I am with my pedals. I also loose track of the enemy with the twisty as there are just not enough buttons. With my throttle the added buttons mean my hands only leave the controls to type a message out, or take a gulp of beer. Even throttle control is much harder with the twisty. Right hand controls the stick and the buttons on it, left hand controls the throttle and buttons on the base. Its tuff hitting flaps AND working the throttle while controling the plane with the other hand on the twisty.
While I can fly with a twisty stick, I can't wait to get home and fly with my CH stuff.
