Bitcoin is not controlled by anyone and you can earn good money without paying taxes. It is very convenient.
Convenient in a way that if you were living on a place where bitcoin is highly accepted in which you can buy things easily with out bringing money. However if you were on a place where bitcoin is almost anonymous it is really hard for us tho the transaction really does helps us a lot especially those freelancers
Even if bitcoin is not accepted in your area to buy anything directly you always have an choice to convert it to fiat currency and you can use that anywhere to buy anything so I don't think that its really hard to spend bitcoin nowadays.