Pros
Hard work along with results are definitely rewarded. This is a great training ground to learn to sell in a highly competitive environment. You get the opportunity to work individually and as a part of a team. You also get the opportunity to learn to sell and recruit. Some offices and other companies separate these functions. I think the rotation works best. If you figure out the system, keep your head down, your nose clean and build relationships with your clients and candidates at a very professional level, you will be successful. Once you are a proven producer, demand that your manager not burden you with tasks that take away time from your production.
Cons
Reaching your numbers and commission goals comes at a price. The pace needed to be successful wears you out. I lasted several years and made lots of money but I had to work long hours to do this. I could not achieve the work/life balance I desired. The office is also full of drama which I did not care for. Sometimes luck plays a part and people get better target accounts than others. You can get totally cut out of commission on deals that you contributed to. The other lines of business undermine you and there is a lot of internal struggle. The clients pick up on this and are very annoyed by it. You need a good manager to stand up for you so that you can concentrate on your production. Having a weak manager will hurt your potential success.