It gives me the opportunity to work for myself and build my own brand of technical services for clients and customers.
I'm able to make researches and improve on design and installation techniques, to come out better than other engineers or companies offering the same service
Cons
Most challenging factor here is the frequent scarcity of new clients & customers to execute projects for.
Often, I would go for 2 or 3 months without a fresh job, & this is very financially stressful, considering my dependants and family responsibilities.