I have been able to meet so many amazing new friends from all over around my area! Some of these friendships continue even after we've met in person which is awesome because it's not always easy meeting someone you click well enough for months or years later when there are other things going into your life that may keep us apart (work schedules/school).
It can be hard at times if one member has had some health issues but everyone helps eachother out as much possible without any judgement about what happened before this experience started- just support them through everything regardless!! If anyone wants an incredible opportunity like couch surfing then go ahead. You will never regret doing something once its done though :) Definitely do more than 1 month - 2 weeks was too short :D Its worth every penny spent since i'm now super close friendswith tons oof different cultures who live near me haha!! Just get yourself ready mentally first by.