Little or not career opportunities.
Vast Majority of their business is with one client - eggs in a single basket.
They couldn't careless about their employees, main role they offer is Equipment Maintenance Technician (EMT) and they are often referred to as 'box openers' by management, as unpacking hardware is one of their primary tasks.
Their HQ is Santa Clara is an case study in inefficiency, 'how not to do things'. They have little or not processes for anything, and fumble from task to task with zero transparency. Requests go into the black-hole and sometimes appear on the other side.
Culture and Values are in an acronym called PACE - most staff wouldn't know what the letters stand for.