Flexible hours - If you want to sell a house, be prepared to put your clients schedule ahead of your own. I was trying to make sales on weekends, 6 or 7 in the morning and 8 or 9 in the evening. Properties will become available at all kinds of times in the day and week, and you need to be willing and able to hustle out at a moments notice, or get beat out by one of your co-workers who is.
100% commission - if you struggle you don't eat. Most of the offices are full of young single guys with few expenses, but even at that you probably need an average of 2-3 sales a month to be comfortable, which can take a while especially in less established offices with fewer sales opportunities.
Very strong culture - a bit "frat-like" at times. Inherent with being an office full of young guys there are daily instances of juvenile behavior and pranking going on.
As has been said, don't expect to get paid when you start this job. It can be very difficult to get your foot in the door and start making money. Austin is a very tight market, and you have to be prepared to not only get a lot investors in your Rolodex, not only get several parties interested in a property, not only get several of your investors to come out to a property and (occasionally) bid on a property, but then be prepared to be beat out by the other agents who have some big-time investors who buy several houses a month. You have to be prepared to lose time and time again before you win, because it could take a month or it could take 3 or more to get your first sale, and it could take you half a year or more to be earning a consistent income that pays your bills.
Full disclosure, in my 5-6 months with the company I made one sale right before we decided to part ways. Through a combination of circumstances I got beat out on at least a dozen houses that I had a realistic chance to get. If your psyche can't handle you feeling like you did everything right and still lost, then this isn't the job for you.