I'm two weeks into building a site with this theme and I can say confidently this is a really super, lightweight theme. The documentation is very clear and you can be up and running in under 15 minutes with a version of the demo as your site. After this it is very easy to adapt the appearance and content either through the Drupal UI or via the very straightforward and clear code.
Mitch, the theme developer, is unfailingly helpful and prompt in providing support. There is a dedicated help forum which makes keeping track of queries easy. Unlike many theme developers he really goes the extra mile to solve your problem, even adapting the code when the issue you identify is a more general problem.
You can be confident that the theme you install is well maintained and regularly updated to weed out bugs etc.
I'm a developer myself and I can say that all in all one of the best themes I have worked with. If only more theme developers created software of this quality. Great work!