There are already several detailed posts on this in this sub, just go searching.

I’m using the staedtler, after having sent back the original pen after 2 months. They are bourg similar precise. It’s not magnetic, but I have a 3rd party case with a pen loop, and it’s way better, I had to look for the original pen nearly every day in my bag.

And yes, it’s as exhausting to the eye like a real book. It’s wonderful!

If you can afford it, go for it. If it doesn’t work for you, you can return it within 100 days and get your money back. I wish I had that when I was a student, it’s really like having all your notebooks with you all the time.

Yes, the feeling of writing is awesome and I write down more than when I did it with poem and paper, because it’s such a good feeling.