It's decent
I am a really really big ska fan. unlike the rest of these mainstream ska fanatics, i know and love ALOT of ska bands. My cousin has a ska band, also unsigned, which is really good, and made it to the finals of the battle of the bands in NJ...not sure what they ended up placing as though. I'd rank them at a 7/10 and you guys slightly lower at 6.5/10
as far as listening to this on a regular basis, i probally wouldn't do. i much prefer Suburban legends, mighty mighty bosstones, The forces of evil, Ska-p, planet smashers, older goldfinger, Dance hall crashers, the hippos, ninepoundnote, and of course streetlight manifesto. these are only from the 3rd wave genre, since thats what you seem to be oriented twords.
I think the reason for that, would be the quality of the audio itself most likely. not completely sure though. seems to be lacking something.