I posted before on the shortcomings I had... I ordered a Supernote to compare as I had time within my return window.
I love the software on the Supernote tablet - so much functionality easily accessible - lasso headings, lasso keywords, star symbols for actions or other notable items in a notebook etc etc. Unfortunately their desktop (i.e. cloud) app is no better than Remarkable's so that's a wash.
Today I packed up my Remarkable2 and was upset at the potential of the device versus the reality - fantastic hardware let down by software - the Supernote is almost the reverse.
You can only search for converted text (and see issue #1 for why that doesn't work well)
And the zoom is not stored so you have to zoom every single time - strange UX decision...