Thanks for making AFNetworking-ReactiveCocoa. Are you aware of @CodaFi's AFNetworking-RACExtensions? The libraries are very similar, both have nearly identical categories on AFHTTPClient, with many identically named methods.
There are slight implementation details, but very minor in my opinion. Do you have any interest in merging the two libraries into one? A copy of this issue has been created in both GitHub projects.