These are very good extension with clear instructions on how to set them up.
Initially I had some challenges to get Google+ to work, but after the superb support from Alex, I was still able to get it up and running.
In the end it even had to do with one of the other social plugins I was trying before, so absolutely not related to JFBConnect and/or Jlinked and still Alex was kind enough to help me out.
That is what I call Great Customer Service!!!