Pros
JPMorgan is one of the biggest, and maybe one of the best large banks. Employees have an enormous amount of information at your fingertips, if you have enough time to read it. The business has changed radically since the financial crisis, with a heavier focus on compliance and the bottom line, but a stellar suite of products and customer-facing technology, not to mention the perks of working for a large corporate sponsor. A great place to have on your resume.
Cons
True to any large organization, interior mobility is challenging, there is a burdensome amount bureaucracy and nepotism. Top down communication is frequently unclear and intentionally misleading. There are many different lines of business so an employee’s experience may be radically different depending on where they sit, but work is typically unevenly divided with good employees overburdened leaving less-than-stellar employees with plenty of time to network and get promoted.