For the occassional pinball player Houdini is a very difficult game to play. If you love deep code and challenging shots you will enjoy it. When my wife (occassional pinball player) and I went to recently play one on location she just couldn't get into it as the shots are so close together. She can play WOZ, Star Trek, Hobbit, Monster Bash, etc and at least make some shots in those games. By the time we stopped playing she said "I'm glad you didn't buy that game"....
The animation quality could also be better and some feel like they drag on a bit too much. Build quality on the game is incredible and the powder coat seems very well done. Personally I like the challenge Houdini offers and can still see picking one up down the road when I have room for more pins.