I bought RM2 last year and sent it back within 2 weeks. It is just a way too isolated experience for me - next to no connectivity sold as a “feature”. Instead I went with a Android-based Boox e-ink tablet, which allows me to run OneNote, Edge and OneDrive on it. All the connectivity with a similar writing and reading feel as RM2. Plus, RM2 also charges monthly for their subpar Cloud services.., I cannot recommend RM2
They just lowered the cost of the cloud features and added more to the free tier. As someone who struggles with focus, the exact negative you cite is a positive to me. Reading a PDF and marking it right on the device, or reading a physical document and taking notes is great. It is also very nice for me during meetings and conferences. I find that my recollection is better by writing than by typing, with a much more "in the moment" focus.