Vantaggi
Most everyone is friendly and approachable so the culture and work environment is very pleasant. There are a lot of opportunities to grow your career. You can start at the bottom of the totem pole one year and be a manager next year and be working in the field in year 3. Being such a large company, there are always positions opening up, attrition, etc. You can literally have your pickings of what sector, LOB, product, territory, and sometimes manager you want to work for. Most of the managers are macro-managers so you can literally leave for lunch at 11:30 and come back at 1:30 and it looks like you took an early lunch or a late lunch. Managers are not up your butt looking for where you are and give you space. However if you don't hit your metrics and closed revenue they will be more strict. Also, great name dropper to have on your linkedin/resume.
Svantaggi
That being said, Oracle being an enterprise company, there are some cons... Get everything in writing i.e. Pay structure, bonuses, salary bumps, promotions. Why? Because you can be verbally promised something one day, and the story changes the next. Cover yourself and get everything documented. Also, I've always had some kind of issue when I received my bonus or commission. Late, incorrect amount, off-cycle payments, etc.