Just discovered this band. Help me understand their sound.

Hi. I recently got recommended "Melody Lane", and was so moved by it that I started checking out some Uncle Acid albums. I quite enjoyed their most recent one (I'm a fan of concept albums in general), so much so that I decided to see them in concert on a whim. I basically never do this.

How would the community characterize their other albums? What's the general ranking, do they have an overall theme, and do they have any other concept albums? Thanks!!