Paultons will never hit the levels of 'peak' Towers, but in the last few years (I.e. Since Peppa Pig gave them all the monies), they've gone around and put focus on the old day out scene and redeveloped a fair amount of the park too (especially the entrance)... The two new themed areas are very well done as well, especially Lost Kingdom...
It still has a long way to go though, as there's still areas of the old park in there that need bringing up to new area levels, like Cobra and t'Edge, and then adding more high quality rides (like water or dark rides)...
Certainly on the level of Chessie at the current time, though it will probably never add a full on thrill ride, more likely to see family thrills...