AF on the 5 is excellent, though the in-body motor is not the gruntiest so it's slow with huge lenses (like my 100-300 f/4) attached. It's not in Dynax 7/9 or Nikon F6 territory but you don't have to carry 10 pounds of magnesium and a small nuclear reactor to power it either.

Asserting that Minolta AF is all crap because the base-model thing you bought was, is specious. Nikon AF must be crap too because my old FT really can't hack it!