Low pay, heavy workload, expected to have a skillset beyond the given role with zero training. Higher tier coworkers will be rude to you and condescending when they realize you don't know something. There will be no training if you are a beginner. For experienced Tier 2 you will be expected to have knowledge of everything and fulfill the role of a system administrator, Network administrator and everything possibly you can imagine and your salary will be not at par.