I will write it here as I have wrote in a number of places before since I do believe it is important to let others know about the experience I've had with Tigra for JS. I have been using Tigra for a year now. I cannot say enough about it to make it justice. Tigra is a great addition to my site and makes my community that more interesting. The cooperation between JomSocial and Tigra is perfect and makes my users stay and interact. So much so that when I changed JS versions and was without Tigra for a couple of days I had so many complaints I could not believe it.
They are also every site owners wish - they provide free installation and set up and any question you might have will be answered. I should know, I had many. I would and do recommend it. Have in mind that I am not a developer and they made it all so easy for me and for a good price.
