As a traveler myself, I've always enjoyed homestays and B&Bs more than the usual hotel/hostel. It gives you a sense of what it's really like to live there- you feel more like a friend or family member coming for a visit rather than just a tourist. I love gaining an inside perspective from my friends from different countries as well as changing stereotypes people may have surrounding a particular nationality.
I hosted several people in my London flat but as of October 2013, I am now working in Nairobi, Kenya. I look forward to meeting new people during the next set of adventures :)