Konnichiva minasan 
I have a question to native Japanese speakers:
is japanese "R"-sound really so different from the same sound in other languages?
I mean, surely it sounds a LITTLE different, but does it influence its perception when a foreigner is talking?
Maybe some of you know how to learn its correct pronunciation.
Also, in your opinion are there any other such "problematic sounds" in Japanese for foreign learners?
Hope to hear some answers and advice.
I have a question to native Japanese speakers:
is japanese "R"-sound really so different from the same sound in other languages?
I mean, surely it sounds a LITTLE different, but does it influence its perception when a foreigner is talking?
Maybe some of you know how to learn its correct pronunciation.
Also, in your opinion are there any other such "problematic sounds" in Japanese for foreign learners?
Hope to hear some answers and advice.