As a manual owner that put on 1434 km on my M5 last 5 days.
Here is my comment on daily usesage.
1. 1st and 2nd gear is not easy to shift smoothly. This is same problem I had with all of my BMW manual and this is not isolated to just the M5.
2. Personally I can live with slightly grabby clutch in first and second gear. But my wife hated it. She was not a happy camper during the city driving. But I can careless.
I think the resistance is a little light but tolerable. But unlike the 135i manual, i was still having difficulty getting the release point of the clutch. Hopefully when i get my car back i will have more time to get used to it.
Overall, I am very happy with my manual and would not want the DCT
.