Pros
These guys have truly got a great product. Every sales call I was on you could hear the excitement in the prospects voice. The sales engineers and developers are amazing not only do they give great demos but also sell at the same time which in my experience is hard to find in a team. The developers will build additional functionality to meet the needs of clients and prospects immediately. This is an awesome advantage as I've worked for other organizations where it could take months and years to get new features out. The leadership is outstanding. The sales director and CEO have the best work ethics I've seen. In fact, the entire office did but I worked directly with sales mostly. They lead by example and even though there's long hours occasionally (as there is in the early stages of a company) you won't be alone the director and even CEO will be there with you. It makes it a lot easier when everyone is giving a solid effort and putting in the extra hours. All in all if you are able to get the opportunity to sell for Goliath you should take it. They are in a great market with a great product with a great team behind great leadership. The others who posted negative reviews were most likely unsuccessful sales people who weren't able to make the commitment to their success.
Cons
This is a challenging career. It requires long hours at times. But if you like to be challenged and don't mind putting in the extra work (as I mentioned before you won't be alone, the CEO will there with you) you can get greatly rewarded. It's a small office but if you can get in now you can be there for the growth and reap the benefits.
