I borrowed the audiobook from the public library.
After the more cerebral pursuits of Faefever, Mac is back in real action. Dreamfever is the most action-packed volume in the entire Fever series, which is lots of fun. There's plenty going on beneath the surface level, as well, and some crucial relationships are definitely changing in very enjoyable ways.
A few sections are narrated by Dani instead of Mac, and that is the only real weakness of this book. Dani's voice, particularly in the audiobook, grates on me. Fortunately, the Dani passages are only temporary and Mac does resume telling her own tale.
An important note about the audio production of the book is that Dreamfever and the next and last book of the series, Shadowfever, are read by Natalie Ross and Phil Gigante. Phil Gigante does a great job with almost all of the male characters, but I prefer Joyce Bean (from the first three books) as Mac and the other females. Natalie Ross is good, but Joyce Bean is better.
Still, Dreamfever may be my favorite of the series, which is saying a lot.