I have both a L2K tribby (Indonesian) and an MIA L2K---recent vintage with the 6-bolt neck attachment.
The tribby is pretty darn good.
Tonally, I can't tell the difference between the two. The tribby uses the same MIA pickups, so it's not too surprising that the sound is very similar.
The pros of the MIA L2K are:
1) Slightly better fit and finish. I may have lucked out with my tribby, but very little to complain about in the f&f department. I can say that the neck edges---slightly rolled, and well-dressed fret ends--may be a noticeable improvement on the MIA.
2) Better tuners on the MIA---aluminum post lightweight tuners, vs. generic cheapy (but good quality) tuners
3) Neck profile. The MIA is thinner, front-to-back.
4) Options for different neck widths.
Overall, I'd say that a used tribby is a fantastic value. But if you're thinking about getting a new tribby, consider a used MIA for a couple hundred more. Nicer, and better resale value later on.