The interviewer will want to know the extent of your knowledge about the company's products. More important, however he will probably test how well you think on your feet. Although it would be impressive, it's not critical that all your facts be accurate -- what's more important is that your sales pitch has a believable, logical progression. It's important to respond to the client's objections and concerns before trying to "close" the deal. I like the professionalism of the people. I work out of my home which may mean more hours in the long run but it pays with five percent in sales commissions. The potential is enormous. The work culture is easy going. I am more of a suit but have the flexibility to arrive in khakis. The best part is being able to have my black lab with me when I'm not on site calls.