I have had a Kindle for a couple of months and love it. The first one I had had a screen failure but it was quickly replaced by Amazon.
I have the official cover with in-built light. It is very expensive for what it is but was worth it for me as it allows me to read in bed without annoying my partner which is something I treasure.
One of the coolest features is that almost all books have a sample chapter or two that you can download before paying for the book.
The web browsing is basic and clunky – I rarely use it if I have my Android phone with me.
When I bought it I had hoped to store A4 PDF work documents on it (manuals etc.) but it is a little too small to read them comfortably in portrait mode. You can zoom in but this is again a bit clunky.
Despite these limitations I would strongly recommend the Kindle.