Pros
I had great boss. My team was awesome once an individual retired. Site managers were great, I was able to travel to some really cool locations and meet some great people. The technology was involved and working through the disaster of construction and engineering taught me a lot. Acciona is a great stepping stone for entering other high paying companies in Chicago; everyone who leaves becomes a senior manager or director somewhere else.
Cons
The company operated like several separate companies. Some of the US based VPs were toxic, not familiar with industry best practices, and messed with metrics to hide facts or push blame in order to meet goals/KPIs. Very little communication between departments which made life difficult for any junior staff. Everything was urgent or a big deal - most of these items were not urgent or a big deal. There was a ton of drama amongst the senior management. I found I really could not trust anyone beyond my direct boss and group. Also, the company will not try to retain you.