Making the job of coding easier for developers is a good selling point and will be popular, but I doubt this feature will remain unique to Neo for very long.
I also think that whether it's a good investment is less dependant on real features of the currency, and more on people's opinions - looking at the numbers it seems to be well liked, so probably worth sticking a few quid into :)
Yes, in cryptocurrency world people's opinions are the most important :)