Bitcoin for me is my main way to manage and safe all my online money, I used to use PayPal but I like the concept of crypto currencies more.
It is safe but the problem will go to the online wallet providers if they are trusted. If you had chosen the worst ones and does have a plan to get all your funds then you might lose a lot from it. I'm a user of paypal too but I stopped with my clients that are paying me through PayPal as I prefer bitcoin because of the lower fees.