I have a Rokkomann guitar which always gave me problems with the tuning - a couple of years ago I had the bridge replaced and now it tunes like a dream. The luthier who did the work told me it was a Japanese copy of a Martin guitar; the original had the frets at the wrong distance from the bridge and the copy had the same fault, so he set the bridge a little further down the body. I bought it 2nd hand in 1991 from a bloke who said he bought it new, and I believed him. I haven't seen another guitar of that brand name.
However it's a dreadnought, and I am a small female, and my shoulder is giving me problems - so I might have to play it less.