I bought a full case from Luigi at Leicatime for my ZI rangefinder, and absolutely love it as a halfcase, but never use the top and would not get a full case for a camera again (at least I don't think I would). Does slow down film changing and would be a significant impediment if I chose to shoot from a tripod with that camera, which has not been an issue for me. A tactile and aesthetic dream case. I believe Luigi can build a tripod lug into the base of his cases if purchaser desires.
On the other hand, his prices are also high enough that I have not felt able to get his case for any other of my small format cameras, so live with the much inferior cases Nikon made for their recent special release rangefinders on my vintage SP and S3 2000, and the lower half of the case that the Head Bartender likes to ship with his Bessas for my R3a, which is quite adequate for the job but a little bulky and butt ugly, as well as tactilely (sic) uninspiring.
I do also use an Optech neoprene one piece stretchy case (picture a camera wearing black Spandex) by way of variety on my Bessa R2S. It does provide nice protection when the camera is not in use or just dangling from whatever body part you like to dangle your camera from, and once slipped off the camera is out of your way and just kind of hangs below the camera on a short length of shock type cord, right in front of you, helping you look like some new breed of photo dork. Since it is not on the camera when actually shooting, it does not provide any of the tactile jollies at which Luigi's cases so excel, and only provides protection when you are not actually shooting as no part of the case is on the camera when the camera is actually in use (hopefully this is a significant part of the time that you are carrying the camera). Cheap, however.
I do not use anything for my Nikon SLRs, being as they are from the dark side and not rangefinders, they don't deserve special treatment but must instead suffer the full force of the elements naked. On the other hand, their exposure has not done them any harm that I have noted, which has had the side effect of making me feel less compelled to invest in more of Luigi's masterpieces, much as I may covet them.
Larry