Any answer would be subjective... and would have to start with, are you or will you be part of the Apple Music world?
If yes, then maybe. If no, then definitely not. The HomePod is apples ‘gift’ to Apple Music subscribers. Only. With an IOS device. All others need not apply.
Ok, but if that doesn’t bother you..., to me it’s worth it. Works great. Very smooth sound. If you prefer punchier boom, then you might prefer the google home max. Maybe. Oh wait you said the mini lol. I was commenting on the max.
The mini doesn’t come close sound wise. Not comparable. Why not ask how the max compares to the mini? They don’t. But would be closer tech wise.