The complaints are not that the book isn't nice enough towards Jobs, but rather that Isaacson doesn't know enough about technology to make this interesting or insightful, nor did he try to educate himself before writing this book. Isaacson is at his best when he dives into the more human and social aspects of Jobs's life. As soon as things get remotely technical, the book begins to fall a part. He misquoted Bill Gate…
The real value and insight that the book provides is the access to Jobs during the last years of his life, as well as the people who played important roles in Apple's resurgence during the last 10 years. To nitpick the minor technical details in the book is to completely miss the point.