Sort:  

If you use a Mac computer (or linux) - try it! It does have some really nice features that Lightroom doesn't have. In particular its parametric filter ability is awesome and has, as I understand it, not an equivalent in Lightroom.

oh no, I use Windows, what a pity :(

I use windows too and it is possible, but it is more complicated since you need to install linux in a virtual machine and then run Darktable inside that.
Oh well, the important thing is that you have a working way of editing your pictures and Lightroom does work very well.