Has Africa gained from China's infrastructure plans?

As China marks the tenth anniversary of its Belt and Road initiative in Beijing, we look at benefits for African countries. What are the continent's losses and gains from working with China?Also Ethiopia's prime minister Abiy Ahmed has again said, his country needs its own seaport. Ethiopia is landlocked. So what would he need to do, to make that possible and at what cost?And how Kenya’s Kelvin Kiptum went from running in borrowed shoes...to breaking world records.