I've have had good and bad of both types over the years......guess it depends on who the loose nut behind the wheel is.

I buy my machine built wheels from Universal Cycles online( I know nobody there) over the last few years,they have been real well built.I haven't had to do anything to them.

They are not on my bicycles but they are on a few good friends of mine....and they remain good friends....
One of the fellows has 700's/105/butted spokes/a719 rims.....I have NEVER touched that setup in 4-5 years.