I've been using an X200 with Trisquel and Guix package manager on it for a while now. While I have another non-free machine, which is quite powerful, everytime I code on my X200 it is a joy to work with. Very satisfied with it, but I think it is a matter of expectation management. You will not be able to play modern games or display some 4K videos on it (I guess). I do not need those, when I want to be productive and not get distracted from coding.
