Vantaggi
You can just sit back relax without getting fired, as your seniority goes up so will you compensation. Definitely recommend for those who has a decade of experience with good salary negotiation skills to retire there. Occasionally, you get to witness seniors who cannot handle stress hide in toilet and cry for 2 hours (Rare high value entertainment something that you thought could only happen in movies).
Svantaggi
New comers take most of the work. Useless senior staff who refuse to not retire there will always have the last laugh in both compensation and workload. They pay lowest in the industry (especially for graduates), but if you have the aura of uselessness it will trigger a slight pay hike. Very little value add to career because the environment encourages people to stay low profile and not innovate. Those who are more capable are constantly leaving or have left. Those who stay on usually are exetremely unlucky in job hunt, to crappy to find new job due to their incompetency or intend to retire. You can hope for promotion if you intend to queue behind those who are more useless but more senior them you. Oh ya, the management is racist. The senior management are all made up of French.