Pros
Good support, all you have to do is raise your hand and there is a wealth of knowledge across the company. I am given a level of independency but with good guidance from my manager. My short term target is more than reasonable and I have been given a great chance to succeed. I always look for four things: product, culture, support and training and I cannot fault New Relic on any of these. Really, if you are willing to put the hours in (as any sales person should) the opportunity is there. If you find you are struggling in any particular area, there are always people around to help you.
Cons
There are a lot of internal meetings covering a wide range of areas. These can often feel a bit scattergun and usually take place during the middle of the week (key selling days). Sometimes it feels a bit knee jerk and so the only con I can really find is that the company should be more strategic with its internal meetings and when they are held, and focus on keeping information concise.