I would actually not be worried at all. As you have mentioned, Leaflet is ideal for people who look for something simple which they can further expand. Mapbox i

I would actually not be worried at all. As you have mentioned, Leaflet is ideal for people who look for something simple which they can further expand. Mapbox is more for people ready to pay for a robust set of APIs and SDKs which can be nicely combined together. From my experience, I think both of them are doing an excellent job.