I think it was just the whole Spike-constantly-getting-hurt thing, as well the not-being-able-to-fight thing
Yeah, that annoyed me too. I hate when they do that in manga/fiction. Ever read Banana Fish? The main character keeps getting captured, freed, then captured, then freed, etc. It's annoying. :P But I liked that even helpless, Spike still kept his snarky attitude. Personality-wise at least I felt he was in character.
The brother Djoser was definitely my favorite character though! I wish she had put up some pictures of him, and that he had gotten a few Angel-sex scenes too. I mean, I love Angel/Spike obviously but Angel/Djoser would have been awesome! Or hell, he had a crush on Buffy. I'd be happy to read Djoser/Buffy too. ^___^ Then again, I never finished the series so maybe there's something later? *hopes*