Vantaggi
It seems like there is so much room for improvement. Things you could contribute to improving using your knowledge and expertise. The sad part is, that you realize too late; it is this way because no one wants anything improved and trying to make improvements will only bring you pain. There's a guy who wrote a great review comparing this company to North Korea - you should read that too, since it's a very good primer on what life is like at this hole. Discount these negative reviews at your own peril.
Svantaggi
Somehow, this place evolved into a cesspool of moral corruption. If you thought big banks were evil, try a non-profit financial institution which 'believes' it's doing the work for 'the greater good'. The mental abuse perpetrated by all levels of management is criminal in nature and someday a lawsuit will be filed. If you could stomach the abuse, apply for a job and join in a class action lawsuit that might allow you to retire early. Although I'm not sure that long term exposure to the toxicity of this place could be compensated and the damage to your well being is a steep price to pay. I left after 12 months and that was 11 months too long. I felt like I escaped, leaving others behind to perish in the gulag that is TIAA.