[noggin]

Think 5 to 6 stutters per movie is still too many. Just IMO. Guess we'll find out for sure as more users test and report back.

This is where you bought yours from?
Himedia Q5

Yes, and got the English version, but I'd make sure with seller before buying as you don't want to end up with the Chinese version.

6 stutter in total for all test movie . Some not stutter , some one some two . I think the problem is NAS to busy. Playback from pc shared no stutter.

Have you tried increasing the buffer size in Kodi? I think it is possible to increase the size of the buffer which will mean it is less likely to empty during short bursts of NAS activity?