Laravel and Symfony are both extremely good, and the only reason people don't use them tends to be out of misplaced arrogance. Unsurprisingly, they end up building their own awful framework, and at some point the project either dies or someone says "Erm, we should put this in Laravel".
There are some people who've built great projects without these frameworks, and there are many projects in these frameworks that are terrible. But in terms of probabilities, you've got a much better chance of a project being well-built if it's in Symfony or Laravel.