Pros
Assistants have freedom. You're on call, but without a deadline -- you have the convenience of deciding when to complete your tasks. You work from home. You have weekends off. There is variety in your work. You talk to a lot of new people due to turn over.
Cons
Turn over is constant. Internal change is constant. The company needs to shift focus to retention and incentives for assistants and clients. Give assistants a raise, because when management fails and clients aren't happy it falls on your shoulders to keep an upbeat working relationship. Management professes a commitment to satisfaction on Zirtual website, but cares more about making money than making sure there are enough assistants to win client satisfaction. Zirtual does not provide enough support or training. Assistants end up taking the heat. It's hard working as an assistant when management won't extend "make-goods" to clients when stuff goes wrong.