Bitcoin is the gold for the crypto currency, it is the longest and has the largest capitalization of the market. Although bitkoin is in many respects superior to traditional ways of paying and transferring money, there are, however, certain obstacles to its widespread acceptance.
I think we already got your point here. The obstacles that you have said, like the slow confirmation time and the high fees you have to pay the miners has been plaguing us for the longest time. There's even a debate on it for like 1 or 2 years already and it looks like there's no really clear direction right now. So we really love bitcoin to really take over in the next couple of years however, it will not be the case. What we are going to see is that bitcoin as a trading instrument more than a p2p for micro transaction that Satoshi envision.