It should be just as good.If a corrected SpyderX does the job as good as the ES-2000 with Spyder5 combo the improved speed makes it worthwhile for me.
There is no need to push the button. Just make sure the meter is facing the white tile when you click on the meter icon.I'm still not certain about the calibration of the ES-2000.
Autocal sees the sensor and goes to the next screen without the button press. But I'm not certain yet that the sensor is actually calibrating without the button press.