Pros
As Senior admin I was given full authority to build the unix team as I saw fit, and to define technology standards as I saw fit.
Cons
Management totally failed to deliver the promised 'unix team' for me to build up. After 9 months I was still the only admin, and was still expected to be on-call 24x365. Management was totally non-responsive to my repeated requests for assistance. My workload was unrealistic, I couldn't even address half the work coming at me. Benifits package was poor. they promised employee stock purchase, but were never able to deliver. Health insurance was more than 5 times what I pay for private insurance. Retirement was non-matching 401k. PTO was 3 weeks per year, but since I was continuously on-call, I couldn't really use it.