I second this opinion, though it's been a couple years since I last used it. Designing complex tables in reST was far more cumbersome to me than just writing it in HTML. It requires you to basically know the HTML your markup syntax will generate anyways, then deal with the quirks of that but with less overall control than raw HTML gives you.
However, generating PDFs, a static website, and any other formats from a single reST document is much easier than doing to equivalent from an HTML document so it has its uses, but I would not use it as blogging markup unless I planned on publishing a book from the same blog content.
It depends on what you're doing. For documentation I'm always running reST but for articles for sites etc (with a static site generator) I will turn to Markdown.