I believe in bitcoin and save my coins for the future when the price is too high. Bitcoin has good prospects for development and it will undoubtedly be the first crypto currency in the world.
Most of us believe in Bitcoin that's why we're here. Cryptocurrencies are the future of money, easy to transact, faster and less fees compared to conventional ways. Bitcoin definitely has future.
Yes, I dont find any solid reason for doubting the future of bitcoins. There are no strong reasons for the bleak future of the bitcoins. They are becoming popular day by day. All the features you have mentioned definitely make bitcoins have an edge over fiat currency. Soon the whole world will be agreed to use bitcoins as the main currency.