TDK is a decent game. It's not the best Stern nor the worst. It's basically an offshoot of the POTC ruleset with modes and score multipliers, but it's a much better game than POTC. The good:
1) crane is pretty awesome
2) has really good multiplier strategy
3) has good stacking and multiballs
4) has a lot of different ways to get a high score
The bad:
1) the center ramp requires a stupid amount of shots by default. You need to turn it down in order to enjoy the game
2) the modes all have the same shots. Pretty uninspiring.
3) the voice work is pretty substandard
4) the playfield layout is kind of iffy. The hurry up thing is kind of annoying after a while, the center ramp likes to center drain a lot, the POTD is as lame on Batman as it was on LOTR, the scarecrow shot needed an additional switch to tell bumpers vs shots, etc.
5) Ball times are kind of long
It's a fun game, probably in the 2nd tier of Stern games (below TSPP, LOTR, SM, IM, TRON, etc, in the group with POTC, Elvis, RBION ). I owned one for about 4 months, played the crap of it. I liked it a lot but got to the point where all my games basically came down to hitting the center ramp over and over and over.