I still think bitcoin is an asset, and it's hard to call it currency.
Because currency is going to be widely used, and bitcoin is hard to use on a large scale right now, I expect the lightning network to change everything.
Yes Bitcoin can rightly be said to be an asset at the moment because it has more of speculators than merchants at the money and that explains the the very high volatility and unstable price being encountered in the market. If and when the number of merchants in the community starts to amount, we would start to see less of volatility and price most likely to appreciate.