The broomhandle Mauser is poorly balanced, but they are very well made and reliable. The Luger is a wonderfully balanced and a natural pointer. They are finicky about ammo and cleanliness. Both are really not modern carry guns and if something breaks, parts availability could be somewhat problematic.
The Luger was (is) a crappy pistol. It's collectibility comes from it's association with infamy and unique design rather than from it's effectiveness as a firearm. By all accounts it's accurate and comfortable but it was an overly complicated pistol that had serious reliability issues. I would definitely like to have one as a collectors item/fun-gun but not as an EDC. No way.