USED to be a solid add-on for storing away passwords, attachments, and other goodies across all devices. I however can no longer recommend this to anyone not willing to pay a pretty penny. The recent update requires free-tier users to choose between using LastPass ONLY on Mobile devices (phone, IPad, Tablet, etc) or ONLY on Desktop (Starting Mar 16, 2021), which takes away an enormous use-case for most people including me. LastPass has bait-and-switched the entirety of its free-tier user-base that relies on this cross-device functionality and will no doubt continue to inflate its already ridiculous pricing plans for storing only a few kilobytes of your private data.

TLDR:
If you're fine with spending a pretty penny, then it is a fairly good password manager. However you can get the same experience elsewhere for much cheaper (or free).