One the few games I've purchased, sold, and then after a couple of years, had to find another. It is a great widebody of the 90s. Three flippers, three ramps, great toys, and multiple ways to play for score -- all things that really resonate with me. Also, I like the theme and custom call outs that the actors of STTNG recorded, and being a S Ritchie game, it has lots of flow.
I paid $5k for my most recent example, but it is in great shape with a recleared playfield. For me $5k was a no brainer. For others, they won't spend $4k. Overrated/under valued -- that is up to you to decide. For me, it is a great bang for the buck game. YMMV