K. Kale Turkish Mausers were under-appreciated for many years, being viewed as sub-standard compared to other Mauser rifles. This was mainly driven by the fact that they appear less refined in finish, as well as the fact that they are, well, Turkish!
But I have found my Turkish Mausers to be not only well-made, but excellent shooters. In fact, I can't really recall ever reading about someone here saying their Turk doesn't shoot well if provided good ammuntion.
To echo Doc's point, I have been the "accidental Turk collector" for some years. Never really intended to collect them, but I bought them when they were really cheap because I knew that they were well worth it. Wish I'd bought (and kept!) another dozen.
So far, I have:
a "pseudo 1903"
38/46 short rifle
a couple early 40's M1938s
1948 former Gew98 (you can still see the "Gew 98" mark and an Imperieal proof)
a couple Gew 88/05/35's (not Mausers, but reworked by Turkey)
Nothing worthwhile ever comes easily.