Yes, demo account trading is very valuable. You should study the lives of successful traders and you will find that they all had spend time in demo account trading. Humans are a really unthankful breed. There is a platform which is free of cost and we look down upon it.
Same opinion from me! Really, I am also glad to the demo trading service! I see; a number of traders made their trading skill without any money by using the demo service! Till now demo is the best way of Forex learning.