At the risk of sounding like UTI99, I don’t think GP is shit actually. It definitely needs plenty of TLC, some improvements in some areas wouldn’t go amiss but on the whole it’s fine. Compared to plenty of other grounds, it has the benefits of having a roof on all stands (yes, supporting pillars but how often is the ground that full that you have to sit/stand behind one?), seats are pretty good for leg room from memory and sightlines are generally ok, apart perhaps from the first couple of rows of seats.
I’m sure it could be a lot better but I don’t think there’s anything inherently wrong with it. Just needs some cleaning, some fresh paint, a bit of improvement in some of the toilets & catering facilities and I think most fans would be fine with that.
