Pros
Even though we have rapidly accelerated our growth not only in employee size, but in product offerings within just a few years, we still hold that "start-up" "small company, family feel". That is what keeps me focused even during the harder days. We are all truly working towards the same mission of helping get drugs to the market faster to help those in need, and you can go to anyone in the company when you need assistance. I have never seen a company where the President (and co-founder) are just as hands-on and invested in the product and employees as everyone else.
Cons
Sometimes teams get so wrapped up in their own objectives they may forget the impact it has on others. We are still actively improving across team communication, and making changes to ensure we are not working in silos but remember our common company wide goals.