I suggest you start using bitcoin before giving an opinion about its speed and cost.

Bitcoin as a payment system, currently has the fastest transactions among all payment systems including the banking system. The transactions reach their destination immediately (1-2 seconds) and on average it takes 10 minutes for them to become finalized.
In comparison in the traditional systems like the banking system, it takes months for the transaction to become finalize and same with altcoins considering they need a lot more "confirmation" compared to bitcoin to be considered final and that usually takes hours.

As for transaction fees, in 99% of bitcoin's lifetime the fee has been very low. Currently a normal bitcoin transaction costs about $0.03 which is very cheap.