I love the experience of living overseas. The learning experience is always more intense because people are different and people don't think the same way you do. This kind of experience is really life changing in many ways. I have the impression that I will travel a lot in the next few years, at least I would love to.
On the other hand, it is always nice to be back home, even for a few days. Being away from home always gives you an impression of being insecure because you never know how people will react on what you are doing, what you are saying, etc. I suppose this is why an experience abroad is always more tiring than being at home, and not only because you speak an other language.