Any one know this sitemap making tool?

Many of my friends recommend me this tool, sitemapx, a free sitemap generator. I often choose to use paid ones since i think it will better than free one, but my friends say this free tool is powerful and worth to use. any one use it? can how do you feel about it?

yes, SitemapX is also the sitemap tool I use. although a free one but really very professional and easy to use, it not only can help you generate sitemap for four common types, including, XML, HTML, GZ, TXT, but also can submit to your server with its built-in FTP function. besides, it is also a nice site checker, which can figure out dead link, error link and so on. And it also have a Ping function for major search engines(Google, Yahoo, Bing, etc.)
no matter how, it is a totally free tool, you can have a try by yourself. the site address for it is:
www.sitemapx.com
good luck