More often than many are willing to admit (which is understandable as it can feel embarrassing to spend that kind of money and not be happy with it). IME many people (myself included) fall into 2 traps...
1.) They hear basses like Gouche's and think they are representative of the standard "MTD sound", when in fact they are not. (This one is an easy fix though as you just need to swap the stock preamp with an NTMB+F preamp)
2.) They think that because they are made by the same person that if they get the right cut of wood and figure out some "secret setting" that they can get them to sound like the old Tobias basses. The design and goals behind Mike's current electronics vs what was going on in the Tobias basses could not be more different in sound and function.
Mike and Daniel build amazing instruments, they are the best playing basses I've ever come across for the way I like to play and run my action. However, I had to go on a bit of a journey myself when it came to sorting the sound out after not getting on with the stock stuff.