I have five LTM Barnacks.
Three of the LTMs are 1932-33 black lacquered, and don't get out much ( They function well, but are nice enough cosmetically that I'm pretty careful about when & where I take them shooting.).
My first LTM is a IIIf Black-Dial ( 1951-52, s/n 6004xx) that worked when I first got it, but the shutter curtains quickly went crackly-crinkly, so now it needs new curtains AND a CLA; also, the flash sync is gummy, and works intermittently. Cosmetics are beautiful; it just "don't work"...
My "everday user" LTM is an "ugly" (pitted, worn chrome) III (s/n 1366xx, 1934) that came from e-bay for about $150, wearing a Komura 35mm lens... I was surprised to find it in what seems to be good working order - shutter is light-tight, and runs all the way down to 1 sec.
I put my Summicron 50 on it, shot a test roll, and it's been my "user" for over a year now, having shot close to 100 rolls of film.
Also in the kit for this camera are: black 90 Elmar, black 135 Hektor, 35 Elmar, A-36>E-39 filter-ring adapter, E-39 Heavy-Star hood, Summicron "barndoor" hood, Nikon "Varifocal" finder, Gossen Luna-Six meter. This is my "everyday"RF" kit.
The only "downsides" are: the lighter, more delicate "built=up" body, no flash synch ( not too big a deal for me ), the separate VF / RF windows, and having to use an accessory finder for anything but the 50 mm prime lenses. Oh, and trimming the leader and getting the film shoved-under the spring -tongue of the take-up spool...
Most of my shooting is in daylight, so I wouldn't miss the slow-speed knob...
If money were no object, I would like to get a IIIg for a user; I think I would enjoy the internal bright-line finder and the automatic parallax adjustment... but they're a little costly for me...
I plan on having my IIIf overhauled and that becoming the "user"... if that ugly III ever dies...
My local "mentor" keeps telling me that I "need an M Leica" and to "quit torturing myself with LTM for a user"... so far, I'm resisting that advice...
Good luck...
Luddite Frank