I don't care/use kingsford. But I still use briquettes in my drum. I also use lump. Depends on the temp I'm smoking at and how long of a cook.
I've never had my coal basket go out due to ash build up. Never been a problem. My basket will go 20+ hrs at 275*.
As far as clean up. YES more ash. But I have to clean it up anyways. What's the difference if it is a small pile or a larger pile.
I use one similar to this
https://www.homedepot.com/p/Carlisle-Duo-Pan-Lobby-Dust-Pan-and-Duo-Sweep-Broom-36141503/203883737
Sweep the ash to one side of the drum, then sweep ash into the stand up dust pan. Dump into trash can. The day after a cook to make sure there are no hot ashes.
Over night cooks it takes 2 times to get all the ash. But 90% of my cooks are 6 hrs or less. So not much ash. Still is quite easy and quick.
I find this the easiest, and contains the ashes the best for dumping.
Where I hated dumping/tipping a coal basket with coals left over. And trying to get the ash off a pan attached to the bottom of the coal basket. Always made a mess. But that is me.
I am only able to smoke at 150-170* using briquettes. Lump 190* is typically the lowest and not have the lump go out after a couple hours. When doing jerky, sausage etc.