Ive been to the crispy cod and agree it was nice, quite posh for a chippy.
Plassey street in Penarth is my local and that's pretty good.
I used to like XL fish bar on Crwys Road, not sure if its still there and Albany Fish Shop used to be a good one.
Makes me laugh when people rave on about Dorothy's on Caroline Street, I went there sober once, never again!