I'd also agree with the above. It's basically a case of "if you like this genre, this will be pleasant padding for your library". I just think that alone is impressive for a band of their status. The production quality is great for a total DIY project, which shows talent. I also think their singer sounds fairly distinctive.
Looking through most of the metal bands I love, their first couple albums are horrible compared to everything after. van Canto, for example, is one of my favorite bands, but I don't even listen to their first album at all ever. It sounds like it was recorded in a rubber garbage can, and most of the arrangements sound pretty clumsy. I don't know what it is about the genre, but it seems like it takes longer for most bands to find their identity and get really good at making stuff that sounds polished and cohesive. Maybe it's because your electronic, pop, alternative, etc stuff is easier to lean on a talented front person, because most musical elements are designed 95% of the time to play support to the hook and just bleed together in the background. I think metal is more demanding on every performer, and it's more obvious if it doesn't all work together well.
So it's unlikely that they'll go big, but I'd say they have a shot. If they can find some new territory of their own to strike out into, they'll have a really good shot. Either way, I expect them to be more successful than your average self-producing local act.
I have discovered a great love for chiptune, especially stuff like Anamanaguchi (<3) or Adhesive Wombat.
If you're just getting into chiptunes, I highly recommend
this.