I haven’t been to an away match for about 4 years now. For me, the important thing has always been the surrounding area having pubs etc. I always enjoyed trips to London grounds (especially Brentford). Newcastle was a brilliant away trip.
The worst grounds are ones that seem stuck in the middle of nowhere, like Reading.
The ground I was most disappointed with was Villa Park. I like the look of it, but the facilities in the top tier of the away end were abysmal. Plus I got soaked in a downpour of rain after parking the car and then got stuck in terrible traffic on the way home, which didn’t help.