I have been working at RingCentral full-time (More than a year)
The culture and company promote a work hard, play hard environment. Great people to work with.
The only "con" can be working on a team in terms of commission structure. If people are not pulling their weight on your team, it reflects on your paycheck.
Advice to Management
The open door policy makes management very easy to converse with. Promotions from within are encouraged in this environment.
The reviews are very accurate. Interviewers have no idea what they interviewing for and process is misleading and a waste of time.
I would stay away from this place. Very disappointing. Never heard back despite positive engagement from recruiter