Finally it is given a Overall rating on the 1 to 10 scale. All reviews are useful. Generally these are simple reports of what the kit contains, moulding quality, etc. While a Construction review is written after the kit has been built. These will be more in-depth and describe any problems and fixes encountered during construction.
Mulitple reviews are good too, in fact it is desirable to get a second opinion on a kit.
So if a review already exists do not be put off from reviewing the kit too. Reference lists are extremely useful too, I urge everyone to cite the references used for their reviews. Also refer to existing reviews for examples. If possible include a jpeg or gif of the boxcover of the model, or picture of the tool, you're reviewing, in your email submission. This site is free of commercial influence therefore all reviews are unbiased and should be taken from a fellow modeler's perspective.