I never do the pickle ones they don't seem to work for me. I also do very little on Matomy as I seem to have issues there as well.
I don't know what the problem(s) are and some people may have success but they don't work for me.

If you do download offers be careful and only do them if you understand that they will come with other software.
Some of which is no big deal and some that will drive you crazy.