This is my first time submitting a review, but I find this library exiting enough that I didn't want to risk it not getting accepted due to lack of reviews. - What is your evaluation of the design? From my reading of the documents I like the design very much. I'm not very fond of the i prefix given that namespaces are already used, but to me that is a minor issue. I like the fact that everything (including size type and pointer type) is customizable. I like that you can choose between member hooks and base hooks. I and that you can chose safe mode and constant time size. The auto-unlink hooks are also very nice. I like the exposed red-black tree node functions, these will be useful in building other advanced containers. - What is your evaluation of the implementation? I haven't dug into the implementation code very much. The public interface implies a certain implementation. If the implementation indeed matches what what is implied by the public interface, then I would be happy. - What is your evaluation of the documentation? Very good. I didn't need much motiviation, because I understood at a glace exactly when I would want to use this instead of std conatiners or Boost.Mulltindex. But perhaps more motivating examples would be good for other potential users. - What is your evaluation of the potential usefulness of the library? Very useful. I will use this library regardless of whether or not it is accepted, even if I have to maintain my own internal copy. I am a very big user of (and big fan of) Boost.Multiindex. One feature I have wished for there were "sparse" indexes, where not every node need be referenced be every index. I understand this would be a mess to add to the B.MI interface, but now I can do it myself with Boost.Intrusive. - Did you try to use the library? With what compiler? Did you have any problems? Unfortunately no. I would prefer to use it before reviewing, but I didn't want the review window to close without having submitted a review. I will soon try it out with g++ 4.1.0 on linux and MSVC 7.1 on Windows. - How much effort did you put into your evaluation? A glance? A quick reading? In-depth study? In depth study of the documentation. - Are you knowledgeable about the problem domain? I am a heavy and long-time user of Boost.Multiindex (which I love, BTW), but I am no true expert in container implementation. - Do you think the library should be accepted as a Boost library? Yes! Paul Rose