While I don't think it is neither hard nor long to install, I'm also biased, so here is a quote from another person:
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In short, for a new install, you need to set your server path and table prefix, FTP the files, chmod a directory, import the product, and set the ACP settings and permissions. An upgrade is similar except that you need to revert templates (check the release threads for more information as it is not always necessary to revert templates), FTP the files, import the product, and set any new ACP settings and permissions.