I have been following the Honor Harrington series for a number of years, and for the most part, have thoroughly enjoyed it (despite Weber's insistance on whitling away at Honor: first an eye, then an arm). However, War of Honor was a definite disappointment.
There didn't seem to be much of a plot. The war with the Peeps is over, but no one seems to want a peace treaty. Political enemies want to bring Honor down. Honor and Hamish are fighting the fact that they are in love, since he is devoted to his wife, a quadraplegic. All elements that have been used before.
The main problem with the book is that nothing actually happens! in the first seven *hundred* pages, more than six hundred are of people sitting around lecturing each other on politics and diplomatic matters. In fact, the very few battle scenes are all off-camera, so to speak. Slavery is suddenly a big issue, but I don't really remember any mention in the earlier books about slavery.
The characters also suffered from a bad case of two dimensionality. The current government, who want to trounce Honor for the sake of trouncing her, are mean and nasty and incompetent. On the other side, the enemy is either incompetent villains or brilliantly noble, forced into actions they don't want. Oh for a brilliant bad guy, like the ones on Grayson in the earlier books.
Basically, War of Honor suffered from a bad case of telling, not showing, and as a result, it dragged. It was far too long for the lack of plot, and the whole purpose of the novel seems to be to get Honor into bed.
All in all, the only thing that made buying this book worth it to me was the fact that it came with a CD with electronic versions of all the earlier books, so I can go back and reread them, and thrill to sparkling dialog, exciting battles, and grand characters, since none of those appear in this latest instalment