I found the park a real mixed bag. Some of it is really quite lush and nice, other parts are just concrete expanses. Where there IS theming, it's top notch, but it's not consistent at all.
It really reminded me of a Thorpe kind of park. Very kind of corporate and "designed" (but in distinct stages under distinctly vastly different budgets).
Ride wise, I thought it it was excellent (except for Ka sucking big time
). There's a lot of good coaster ground to get through and if you weren't a "coaster enthusiast", it's a superb line up, range and quality. I hated Superman, but I can see why people like it - it's just such horrid placing. Batman was great (if you haven't been on any of the clones I suppose, which I haven't). Nitro is great fun, if a little Marmite. El Toro was utterly superb. Bizzaro was meh, but fun enough I guess, that kind of area of the park from Toro to there was alright actually.
Other than that, the park was a pretty standard mix of meh and kiddy. I had a good day there though, which is the most important thing.