I don't have really unusual requirements for a TYPO3 sitemap extension, so I was looking for a sitemap generator that does the job with minimal to no configuration.

The sitemap generator by Dmitry Dulepov does the job with no configuration out of the box. I'm very pleased. There's a manual in case you want to do something special, but for my site, all I had to do was install dd_googlesitemap and a sitemap was available immediately.