pil___, I had no idea what phone you have so don't be too harsh on me. I am not, yet, a mind reader.
But I am still working on. I only told MY story, not arguing about anything.
I only hope your problems will be solved in a way or another in the near future.
P.S. MFT is stable just fine, till you try using bluetooth and USB. Nav, Radio, Sirius, Phone work just fine. The same as first version of Vista. So Rogerschro was not that way out with his comparison. And no, you didn't pay to downgrade the technology. You paid a higher price on a supposedly better technology (voice commands). Because you can always use Nav as you did when having the Garmin.