Can we use all the features with the self hosted version?

Can we use all the features with either the self hosted version or the version we host with you?

You always get the same features whatever level you are at no matter where you host. That is to say, if you have a premium plan, you can host or we can, the features are the same. If you use the community edition, the features are the same no matter where you host.

However, there are feature differences between the premium and community plans. More here: https://fusionauth.io/pricing