Nice.
The game was very challenging. The horrible ghost AI is exactly what makes this game a challenge. If the ghost AI would be good, the game would become too easy. It would be too simple to corner pacman over and over again. It was hard for me to quickly switch between ghosts and corner pacman, and the ghost AI messed up frequently, but it just means you'll have to take more control over the ghosts and check up on every one of them frequently.
The idea is that the player compensates for the bad ghost AI, but some people just don't get it.