I think this review is fairy even-handed. One of the points made regarding the dated international political situation is immediately apparent but some of the other contrivances are more serious. On the other hand there is recognition of some very effective imaginative qualities.
Personally, outside of Nadia, I found most of the characters unsympathetic. I don't think I'll read the next two books in the near future.
http://www.complete-review.com/revie...ks/redmars.htm