I am using youtube since 4 years and I find it is one of the best site for video sharing.
The best thing is that it is very simple and user friendly, if I have any problem, I find reason of every thing on youtube there are billions of user of youtube so I find everything, also you can make channel on youtube and also earn money by advertisement on your shared videos, you can subscribe channels of others and you will get all videos of that channel, so if till now you have not use it you should go for it and enjoy everything.