Sergas has an employee rating of 3.6 out of 5 stars, based on 24 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Sergas employee rating is in line with the average (within 1 standard deviation) for employers within the Energy, mining, utilities industry (3.7 stars).
This is the worst company you will ever work with; you will get recognized and get all the benefits only if you have a relative there or a friend from the management other than that, it's not worth it.