First time I used it two years back and since than it has become a part of my life. Rather I'm not using its premium services because by the time, they are not useful for me but whenever I'll require, I'll be happy to use them.
Skype is one of the best application on internet for video calling. It is easy to use and provide the unique number for calling like a cell number.
Although i do still have it on my Iphone i very rarely use it but if my server guy needs to contact me urgently he can do so,as he is based in Aussie land i am based out of the UK skype works well.Its mainly used in my case in emergancies.
I used it when it first came out but never have since , ill stick with MSN. I have enough people bugging me on MSN let alone another way for people to contact me
skype phone feature is good for personal use, but not for business. Sometimes, the voice quality is not good enough
I am using this amazing service to communicate with people around the world, it is best when it comes to picture and sound quality on calling, sometimes due to bad network we face problems but that is fine.