I think there is still no Spanish translation of the book, but i will definitely read it when it comes the time. Despite biographies are not quite on my taste i recognize that gossip (specially if its sexual) is an inherent stratagem in all biographies and also the perfect pretext to keep reading unbored. I am very unpatient with this narrative intrigue of gossip-predestination, though i have read some biographies even Werner Ross´s brick on Nietzsche.
But I have to admit that I am not very sure about Dosse: i have read his books on the history of structuralism and i sincerely found an open journalistic tendency to pour authors even though their relation with structuralism was not very clear. It is also to be noted that Didier Eribon criticized this tendency regarding to Foucault. So I feel that Dosse´s motivation on writing the book may be opportunistic: my hunch is to think that he wrote it precisely because he wanted himself to be considered at the same level than Eribon.
To this point i am intrigued on how Dosse is getting to connect all these anecdotes of Deleuze with Deleuze´s work, which is something that might be expected of a biography. i don´t think that this is an easy task because Deleuze always meant to be neat and sharp on how he never excused his work through his life and personal ocurrencies. This might be the reason why Dosse is intercalating both Deleuze and Guattari biographies: as far as i know, Guattari´s adventures and personal issues were never fully isolated from his intellectual or political activities.