It is indeed a good investment and I can serve as a witness on how effective bitcoin is when it comes to investments. The value of it is known to be volatile that's why it is a good thing most specially for the investors when investing. You should not miss the chance on buying bitcoin as soon as you can so that you may get higher rewards in the future. Time is money here and the earlier you arrive here, the higher the profits.
Bitcoin gain last year on 2017 over 10x. No one investment instrument can do like bitcoin did. With that record, I think bitcoin is good investment as long we hold it for long term.
Well, Bitcoin is a good investment but you will not be getting a good profit if you will not be putting a good amount on it, also there are a lot more digital currencies that is just starting and has a possibility of pumping in the future so instead of putting your money in a currency that has an expensive price, a suggest you start in a currency that is just starting.