Does as it says, good enough for you
Works pretty well. It’s not the most sensitive measurement, but it’s good to the ~1.0% or so. In my first 10 measurements most showed 33-1/3 RPM (perfect) but a couple showed +/- 0.5% (all on the same song, hadn’t touched anything). That is not even a critique though - +/-0.5% is a difference of less than 10 seconds in a 30 min playback and an imperceptible shift in pitch. That said, I’d still like to see a longer sample analyzed down to the 0.1% or so and some measurement of wow and flutter. But yeah, this is definitely good enough for all but the most psychotic audiophile.