Absolutely - though some people find it too bare bones. It's designed to be a bit of an anti-Twitter, after all.
Those looking for something more flashy might be interested in checking out, for example, Firefish. The Firefish site also includes a neat "Fediverse software comparison", which lists popular federated services and some of the features they currently have. Personally I prefer the stripped down approach of Mastodon, but reasonable people might disagree. :)
Oh, and there's also elk.zone, an online user interface for Mastodon that behaves a lot like Twitter. Similar to those "old lemmy" sites (like old.lemmy.world) in a way, but as an online app similar to wefwef.app.