I’d last read the orignal several years ago, so I think I’ve forgotten enough of the details to make the rewrite/reissue enjoyable. I’m not reading a physical copy, either; because it was released on one of the Baen CDs, it’s available for download as an ebook for free (!) over at the Fifth Imperium.
Which is an excellent place to get a huge percentage of Baen’s more popular series (at no cost to you), including all of John Ringo’s novels, most of David Weber’s (Honor Harrington and his other, shorter series as well), most of Lois McMaster Bujold’s Vorkosigan series, and several of Eric Flint’s (particularly his 1632/Ring of Fire series).
I’m reading the epub version on my iPhone using Stanza, and it’s pretty good. I can see why the Kindle is popular; I like having dozens of books in my phone, and if the battery life were longer, I’d like it even more.
That said, In Fury Born is a fun read so far; plenty of action, and I’m maybe ~20% into the book and haven’t yet gotten to where Path of the Fury began. The added material delves more into the main character’s backstory, instead of starting off in medias res.
Pointless trivia of the day: according to the afterword in one of his books, John Ringo was indeed named after that John Ringo.