porth is a bit newquay overspill for me, i personally would avoid that stretch of coast..
the county is hugely varied, depends what you want out of it.
i live in the far sw, its not as touristy as some other parts (perranporth, newquay et al) although there is trad seaside and tourist tack if you want it. also benefits from beaches on all coasts, open high moors, some nice out the way places and a decent bit of culture via galleries.
be warned though, the county has been crazy busy the last few summers. my local beach you cannot park at unless you are there before 9am – bl””dy tourists!!!