Garland has been a good thing for Drupal, overall, mainly for the color module. Anyone remember what it replaced in Drupal core? Yeah, it was pretty ugly. Context is important. So even though Garland is something of a front-end developer's nightmare, it has its purpose for the new Drupal user wanting to do at least a modicum of customization to the site's look, without resorting to coding.
And it has served its purpose here. I leaned on Garland (or actually her fixed-width daughter, Minelli) for my blog here for many months ... maybe more than a year. I honestly don't recall. It was since I upgraded to Drupal 6, when I didn't have time to work up a new theme. Garland gave me something so at least I could present the content here (such as it is).