Have just installed and calibrated a M.150 S. I feel overall performance has improved quite a lot and of course the increased light output contributes a lot (now 1200 lumens which according to SIM2 is equivalent to 1800 lumens on a bulb projector, this because of their Super PureLED technology).
This is just a great projector. Earlier I would pick a Nero 3D-2 over a M.150, but not so I think with the new S model. It is just a great projector. It also measured extremely well out of the box, best I have ever seen. It seems to be so linear that to go the extra step with 3D LUT calibration perhaps isn´t necessary with this model.
If you can´t afford the Superlumis, or don´t have a very large screen, I can´t think of a better projector at the moment.