I have a DeWalt 18V hammer drill and I think it's great. I also have the DeWalt jobsite radio and it's junk. Any time I plug in a DeWalt charger on the same circuit it makes so much interference you can't listne to the radio.

Sorry no experience with Milwakee cordless tools. All the corded tools of theirs, 1/2" hole shooter, 3/8 hammer drill, sawzall, 1/4" angle drive adaptor all work great.