Salesman or marketer? A lot of technical folk confuse the two. I think he can close deals, for sure, but really he is a talented marketer.

A lot of really good sales people don't make it obvious they are selling, Jason seems to make it a bit obvious in an un-ashamed way (which make me think he is more interested in getting the word out then pushing things on people).

His enthusiasm is infectious though, its really cool assuming he is sincere (and I am pretty sure he is).