I recently volunteered with IVHQ in Cordoba Argentina this summer(2014). It was a brand new program thru IVHQ and could not have had a better experience down there. Its was my 3rd stint(Colombia and Brazil) with IVHQ and was without a doubt the best overall experience that i could have had. The house, the staff, and the projects all exceeded my expectations by far. I worked at the daycare center and while only about 3.5 hours/day (plus 1 hour in total travel time there and back) the kids and workers were extremely happy to have the extra help. The morning shifts also gave me time to attend other projects or take spanish lessons in the afternoon which were very helpful and extremely affordable. The cost was only $7.50US/hour and the teacher was dedicated and professional as i received homework after every class.
The 2 months that i spent in Cordoba were 2 of the best months of my life and i would highly recommend it to anyone looking to volunteer abroad.