We are honored to have received praise from Drupal founder Dries Buytaert, who said in his blog (emphasis added):
It is not always easy to scale Drupal -- not because Drupal sucks, but simply because scaling the LAMP stack (including Drupal) takes no small amount of skill. [...] Either you can do all of the above yourself, or you outsource it to a company that knows how to do this for you. Both are non-trivial and I can count the number of truly qualified companies on one hand. Tag1 Consulting is one of the few Drupal companies that excel at this, in case you're wondering.