I do not recommend Jetpack neither. Too big and many features that you do not need. Also for security reasons, I advise to disable the xmlrpc interface (it allows to publish on your site remotely via API). But Jetpack requires this xmlrpc feature 🙁

So stick to the golden rule: do not put all your WordPress eggs in the same basket. There are many plug-ins out here far superior that Jetpack. If it would have been so great, it would have been part of the core WordPress no?