They didn't sound awful but the singer kept playing up the "I sort of look like Alex Gaskarth" thing when I saw them & it was weird
Honestly all the bands you're comparing Story Untold to are way better than SU. That being said, they're like if Billie Joe Armstrong tried covering Man Overboard songs with MIDI Instruments.
Story Untold is ok. They seem pretty harmless. The occasional song isn't bad, but I don't think I'd listen to a whole album.