BitWarden represents everything that a good password manager should have. Because it's open source you can trust that this password manager is secure because you can see that it is, you don't have to simply trust that it is. And for a password manager, you need that kind of trust.

I came from Lastpass and will never look back, it's faster than Lastpass and the developer is very attentive to the user's needs. You get the idea that he genuinely cares what people think about his product, something that's very rarely seen these days.