what problem do you have in bitcoin.
Nothing much , IMO We just need bigger blocks to go mainstream and with going mainstream the price will increase logically ... also more anonymity won't hurt (Hopefully developpement of Darkwallet will finish) .
Yeah that is pretty much the only problem. We also need to have more consistent blocks. They are either very close to each other or very far from each other. Other than that, the only other problem is that you have to pay transaction fees. But it is only a very small amount.