Star Trek is what got me into this hobby. I saw a Data East ST25th in the back of a room when I was looking at an arcade game to buy and walked away with my very first pinball machine. 
Since then I've added 8 more, but still looking for my first STTNG... and am expecting the new Stern Premium will be added to my wishlist when it's released
JLP, being a Trek fan and owning a DEST, my opinion is subjective. That being said, I love mine. It is not a complex game and there are only so many shots to be made, but I never tire of the sounds and call outs. Since I grew up with TOS, I think the look of the cabinet and playfield is fantastic. For those that like LED's, this one is made for it (IMO). I'll attach a pic of mine, but the LED's don't usually show up in their 'best light' in pictures.
I've had everything off mine for a complete shopping. I was able to obtain stuff like a new plastic set, translite and target decals without a problem. The ramp, dilithium crystals, and chaser lights can be hard to replace. The only thing that I could *never, ever* find is the subway. The subway tends to crack where the ball drops through the moving target hole. Mine is acceptable, but I've looked pretty steadily for over 2 years and never came upon a single one.
20130718_130709_resized.jpg