While the first three novels in this series were enjoyable books, Realware falls a little short. The book, while still marginally readable, has a glaring flaw - unadulterated sappiness.
Rudy has managed to craft what could be "the feel-good cyberpunk novel of the year." (The movie version will probably be appearing shortly on Hallmark theatre.) Everybody's happy, cleaning up, and falling in love. However, little of it is really convincing.
The pop-tart romance between Phil and Yoke is barely believable ("What's your name? I Love You!") There's just too little evidence of chemistry for them to have gone that far as fast as they did. Phil also utters the phrase "clean and sober" so often that it feels like you're reading a piece of high school anti-drug propaganda.
Phil's constant espousing on how great life is ("Thank you God for making the world!") is nauseating at first, but then shifts into overdrive after his trip into the 4th dimension. At that point, Realware could almost be classified as a religious novel. Everybody gets to talk about their death experiences, how they discovered that souls are shaped like butterflies, how happy they were to look in the face of God, etc.
Couple all that with a poorly-executed deus ex machina ending, and you have the trappings of a substandard science fiction novel. Some people will still probably enjoy it - most likely those that had no previous experience with this series. Those who are expecting another book like the first three will likely walk away disappointed.