I got one too. Looks nice and responsive at first glance, but it doesn’t seem to work as it should.
At the time it arrived I was playing with a new rotary encoder (optimizing the denouncing parameters in my code) and thought I should check what the pulses look like on the new little scope. I could not imagine a less demanding job to test it: trigger mode “Normal” on the falling edge, slow time base (2-50 ms/div), to assess the switching noise.
I noticed that at time bases longer than 10 ms/div, the green trigger threshold level and trigger x-position markers simply disappear off the screen and the trace does not seem to synchronize anymore (it still triggers). The only way to get the markers back (and have a stable wave on the screen) is by switching the time base back to 10 ms/div (or faster). The issue is easy to reproduce with a 20 Hz square wave in “Auto” or “Normal” trigger modes. Is this “normal” behavior for these scopes or is it mine particularly defective?
Also, as a bonus, the switching noise is almost gone when checked on this scope...