I have used Roboform for roughly 10 years. I think it is essential, as I now have 1000's of passwords, some of which cannot be memorized. Roboform is always changing -- sometimes on the top, sometimes on the bottom, sometimes with a right-click. It is a never-ending process of discovery. Roboform is also a constant nag. Roughly every few days, Roboform starts a very intrusive process of nagging for an update. As I use Roboform on several PC's, and my wife also uses it on several PC's, a nag every week results in a huge number of operations. To make things worse, Roboform shuts down many other processes while updating.
Roboform certainly has bugs - -and they keep changing -- when a browser is updated, then Roboform needs to be updated too. Not all are fixed - but the remaining ones are annoyances.

It is hard to know how secure Roboform is. It is troublesome that all of my passwords are stored in the cloud. The folks that hacked the CIA, can probably hack Roboform as well.