Pros
Gain lots of experience on working on various types of equipment; other than it's better than not having a job at all, there are no other Pros.
Cons
Mediocre benefits; company doesn't match 1 thin dime on 401K, expensive health insurance, unrealistic expectations of employees, no employee reviews, management's first response is to write employees up and ask questions later; bad leadership; management tends to lead by terror and threats of losing your job or getting a salary cut instead of encouragement and mentoring, they sign contracts with customers promising service until 10:00pm at night in some cases, then come down hard on you for getting overtime. Lack of communication between departments turns things into a 3 ring circus every day when trying to find answers to problems, the office staff obviously hates their jobs as much as the field personnel do, as it comes across in "attitude" on the telephone from the call center and tech support, when traveling out of town for business they allow ridiculously small amounts for food: $10.00 for breakfast, $12.00 for Lunch, $18.00 for dinner and the amount of paperwork and hoops you have to jump through to get reimbursed. Overtime requires lengthy explanations and redundant proof. You spend more time talking about what you did to a machine versus what was actually done, illogical and pointless internal company software.