Pixels & Dots set up an easy to use dashboard so that we can make small and regular changes to the site ourselves but we have also done additions since we started that required them to work on it and they have been quick to respond to those needs as well.
For example on the website we wanted a map showing all of the countries we have sent students to do research and service. We love the effect. I would definitely recommend them. They are a small company that is local, providing good quality service and are responsive to changes. Larger companies will not design any better than they will.