Works fine. Simple controls on the back. Haven’t used the rotation feature nor the ‘pitch/flat’ controls as I always clip the tuner on to the scroll the same way and am just doing basic tuning on a violin. So for the way I use the tuner, it does its job.
I purchased the tuner with a Ukulele. The tuner worked well. Love it. It's very useful. It's much better than the tuner app on phone.