Hanayamata isn't good enough to compete with all the available CGDCT anime (it's good, but it's not great), however Hanayamata's competitive advantage is that it has a good English dub which lowers the required investment into the show (e.g., I can watch while doing chores with English-dubs). While Hanayamata's English dub is inferior to the Japanese original (as English dubs usually are), it's good enough that the show isn't ruined by it, and if you've got the extra time to focus for English-subs there are better offerings... With the lowered investment (as an English dub) Hanayamata is definitely worth watching, though definitely watch k-On!! first (whichalso has an excellent English Dub, one of the very rare cases where I prefer the dub to the sub (for everything but the k-on! movie anyway))