I’ve got an 8 speed Alfine hub on the bike I ride to work on road in the winter.
I like that the gears are enclosed so low maintenance and only have to replace chain, one chain ring, one sprocket.
Dislike, it’s heavy, and big gaps between gears (but I’m used to riding with a derailleur and lots of gears).
For offroad, hmmmmm, not sure, the low maintenance would appeal but nowhere like a big enough gear range for meaaawaszasxsaxs – sorry, I dropped hoummus on my keyboard and was trying to get it out from between the keys – I might look at a Rohloff though, one day when I am rich!