Ventajas
Vestas has been at the cutting edge of wind turbine technology for quite some time. They are industry leaders at the global level.
Desventajas
Culture has been eroding significantly over the past few years. Too many organizational changes, all with the focus on making the shareholders more 'happy,' to the detriment of the employees who have the actual ability to make the work happen.
Profit is the only thing that matters at Vestas nowadays and, therefore, several regions that are seemingly less profitable than other are essentially left out to dry. There was always a huge amount of focus on the changing market characteristics, but nearly zero action to make internal changes, either to technology or commercial strategies, in order to improve competitiveness against other WTG OEMs.