Cherry flows are smooth flows on the bi-dimensional torus with two singularities. Having a rich behavior they have been attracting a lot of research attention over the years. The first return map is one of key tools in their studies. It is a \(C^2\) weakly order preserving circle map with a flat interval. In my talk, I will survey recent developments in the comprehension of the dynamics generated by such maps. I will particularly focus on functions with unbounded rotation numbers. Following that, I will deduce metric, ergodic and topological properties of Cherry flows which led to resolution of some conjectures.