Luigi's solo debut is good, not great.
The gameplay in Luigi's Mansion was again good, not great. It got very frustrating at times when you shine the flashlight onto a ghost, and it does not stun them, thus not allowing you to suck up that ghost. It takes a long time to get used to controlling the flashlight with the C stick, but once you grasp the concept it becomes second-nature.
Enough about gameplay, now to graphics and sound. The visuals are very nicely done, and an abundant amount of ghosts keeps the game from becoming too repetitive. The music got very old, very fast and hearing Luigi say "Mario" over and over every time you tap the A button and are not near a table, vase, or a door is very annoying.
Luigi's Mansion is a nice game worth playing, but don't expect to get even ten hours of gameplay out of it. With just a few more levels, and a few more twists and turns, Luigi's Mansion could have been a great game.