I'm scared about that too. My 89 bronco 351 4x4 had so many tranny problems with the shift module. This dam thing has five times more computer control can't wait.

 

Everyone I kno with either slap shift or button shift never use it. Unless you have a Ferrari with paddle shifters then I would use it everyday. As far as having the option to put it in M is great when ur stuck in traffic I put my truck in 2 so it doesn't shift every second. Plus I'm sure if I was towing in the mountains I would love it. I can see many uhaul trucks getting the sh*t beat outta them with ppl racing around in M.