I like it a lot. It's an unusually good "summary" article of where we are and have been recently. One bragging point most people miss: it might well be the safest car on the road.
But, as an investment thesis you need to tackle the gen III/battery cost issue. The company's valuation isn't based on the excellent model S, or the latent value of the SC standard/network (which could be huge) but on the ability to bring to market a $40k car in 2016. If you are a bear, you think it isn't possible and tesla is going to remain a small maker of expensive quality cars, deserving of a smaller valuation. If you are a bull, you think this price point is in the bag and tesla's excellent product quality will sell itself to millions worldwide and will leave the big 5 scrambling to catch up.