Vantaggi
Company car, little oversight which also means you teach yourself the job. Vacation time you will never get to use (but no 401k match). Somehow the company manages to hire good people to work with although they will all be short lived. A decent product you can feel good about selling when the company doesn't mess jobs up.
Svantaggi
Unprofessional managers who give no support. Horrible pay, unreasonable expectations. Their model rests all the work on the consultant with no support, training, or guidance. This is a horrible model. The company is not profitable, as a result you will be underpaid for the work you will need to put in to pull jobs through. Pay was held when I finally left, manager lied to upper management about the terms of my leave. There is no work life balance and a poisonous negative culture in the company from management down who rule in fear. Top producers have one off month and all that previous performance is forgotten.