Bitcoin is good investment but I wouldn't suggest to put all your money into it. I wouldn't suggest puting all your money into anything, not just Bitcoins. Every investment is a risk and there is always the danger of losing money so you have to invest with care and you always have to have some back up. Don't ever invest more then you can afford to lose.
True, bitcoin its not just a good investment can be but also an assets which can be considered. Moreover, bitcoin can give us financial freedom in a long run, but it doesn't mean you can place all fund into bitcoin, no! you shouldn't do that anyway maybe later not now of course. you need to be careful first because is not yet declare as world currency.