@488cf7e2 I have had one since before the subscription models came in. 

What I can say is that the writing experience itself is fantastic, and I've particularly enjoyed being able to download PDFs onto it and writing all over them. I haven't used any other e-ink tablet so I'm not sure how it compares to others. I also have the pen that supports erasing with the other end of the pen, which is expensive but probably worth having as well.

Having said that, I think if I had to pay for the cloud service, I probably wouldn't as I don't use it often. In fact, it'd probably be a benefit for me to turn it off at this point, as that would allow me to do work stuff on the tablet which I wouldn't want synced with a third party.

The UI takes a very bare-bones approach, by design I think. Generally I find it enough for my needs but there are occasions where I wish it had some feature that was missing.