I went from October-December (November has the best weather in my opinion) to do a childcare and teaching English project. In the morning I would go to a nursery on the outskirts of the city and help the teachers to give the children breakfast, organise craft projects and help with supervision at break times. I had lunch at home and then went to an English institute where I worked as a teaching assistant.
My host family lived in the suburbs which was perfect as it was a 10 minute walk to the park and we were only a block away from a main road with lots of bars and restaurants. I really liked them and one of the highlights for me was that there were two other volunteers living in my house who I got to know really well. I also enjoyed spending time with the other volunteers and even though we all did different projects we saw each other at least once a week for our socials which the Projects Abroad staff really put a lot of effort into and this made such a difference as we all got on so well and could organise trips to nearby places at the weekend.
The only thing I think I would change would be that I only worked at a public school one day a week and the English institute where I worked four days a week had fairly privileged students. However, I really enjoyed my afternoons at the institute as the staff were all lovely and one of the teachers has already come to stay with me in the UK!