If you're a dedicated reader and have a voracious appetite for good books then the upgrade to a kindle voyage is worth it and more!
Since other people have gone into detail on the device, I will answer only the burning questions I had before I received mine. I was very happy with my Paperwhite and would not have bought this had mine not been stolen/lost (not sure which). My husband still has his Paperwhite, so I was able to compare them side by side.
CAN I USE THE WALL CHARGER FROM MY PAPERWHITE TO CHARGE THE VOYAGE?
CAN PRESSING THE PAGE TURNERS CAUSE REPETITIVE USE ISSUES?
I don't think so. You can turn down the pressure it needs (which is very slight) or you can turn it off completely and turn pages with a tap. It's actually nice to have both options.
CAN YOU SEE WHERE TO TURN THE PAGES IN THE DARK?
No. You can guess where the page forward area is, but the page back is a dot, so guessing would be difficult. But you can still tap to turn pages. Using a cover helps, as the edge of the cover would be right over the dot.
DOES THE FEEDBACK BUZZ ANNOY YOU WHEN YOU TURN PAGES?
I think it does take a little getting used to, but you can turn it down, and I think I will not notice it after a while. (There's no sound; it's purely tactile. ) [Months later: It's not distracting; you forget about it. ]
IS THE ADJUSTABLE LIGHT NICE?
I still do it manually. It doesn't adjust the way I'd like it to. Not as bright in good light as I'd like, and not as dim while my husband is sleeping next to me. Note that if you want to use the “night light, " you have to set that separately from Auto Adjust. Settings/Device Options/Screen Light. I'm not actually sure that the night light is working. It was at 18 when I turned off the light (this is quite bright), and I checked it about 10 minutes later, and it was at 17. My eyes adjust a lot faster than that. I turned it down manually to about 7.
CAN I USE THE COVER/CASE FROM MY PAPERWHITE FOR THE VOYAGE?
I had a Fintie, and I tried it. The entire reading area was still completely visible, but there was about 1/4" of extra space above and I couldn't access the power button. You need to access the power button in the back to wake it out of screen saver mode, and you'd have to take it out of the cover to do that. It would protect it, though, in a suitcase while you're traveling. I ended up buying another Fintie for the Voyage and I'm very happy with it.
IS THE CRISPNESS OF THE TEXT AND WHITENESS OF THE BACKGROUND BETTER THAN THE PAPERWHITE?
When I originally wrote this review it was. But Amazon recently upgraded the Paperwhite and the newest version now has the same screen resolution as the Voyage. Although I don't have the two of them to compare (my husband has the earlier version Paperwhite), I understand that the text on the Voyage is still a tad crisper and clearer. See the Update in my conclusion below.
I do not have any of the page hue issues that others have. The screen is uniformly white.
At first, I was having a problem with the page turners being located at just the spot where I like to hold the device. It took a while to find a comfortable way to hold it consistently. My thumb kept wanting to move to that spot, causing me to inadvertently change pages. Using a cover helps.
BOOKS IN THE PUBLIC DOMAIN AND A COUPLE OF TIPS
There is a way to easily download public domain books from Project Gutenberg on your Kindle by using the experimental browser. Open the browser on your Kindle (in the main menu) and type in the URL: www.freekindlebooks.org This will open a link to what's known as the Magic Catalog. When you have downloaded the catalog, it will appear on your home page and will look like a book. When you open it, you will see it is a listing of all the books in Project Gutenberg, and all these books are linked to their website. You can search for something (like, say, Peter Pan), and download it from the catalog right onto your device without having to connect to a computer. Very nifty. This can be done on any Kindle, not just the Voyage. Be sure to use the domain name ORG, not COM. freekindlebooks.com is something completely different.
You can also download books from the mobile site: m. gutenberg.org. But you would have to open the browser each time, as opposed to the Magic Catalog, where the links are already there.
Know that you can turn off the public notes and highlights that appear in your book, and you can also turn off the “Recommended Content" that appears on the bottom of your home page.
If you are happy with your Paperwhite, I would recommend sticking with it. Only buy the Voyage if you have money to throw around and like buying all the latest gadgets. The Voyage is fabulous, but the Paperwhite is perfectly fine. If you have a keyboard Kindle, the Paperwhite is much better than what you have in terms of clarity, brightness and readability. [UPDATE 7/9/15. There is a new Paperwhite. It has the same screen resolution as the Voyage, but the Voyage text is still a bit more clear and crisp. The main differences between them are that the Voyage has the Page Turns on the bezel (with the Paperwhite you have to tap the screen), and the Voyage is thinner. The Voyage's screen is flush with the bezel and is made from a kind of glass rather than plastic. The new Paperwhite is $119 vs. $199 for the Voyage. ]
Leave me a comment if you need further instructions on anything.