We run a very large site in the UK. The site itself runs on Laravel and we have services written in Slim PHP and Go. We use a little Node here and there, some Java and some message queuing.
My guys love working with Laravel. Personally I’m not a fan of the magic frameworks that do everything for you and you don’t know how they work or how to tweak them if you want to. In that respect, Zend or Symfony are preferable, but I’m the manager in the team with the most dev experience. I’m NOT the guy writing most of the code. We need something we can trust, can develop on quickly that my team enjoy working with, and that’s Laravel. You should never underestimate the value of a happy team 