I can highly recommend Don Pedro de Alvarado Spanish School as by far the best place to study Spanish in Antigua Guatemala. The school is rated with 5 stars on www.123teachme.com. It is one of the oldest and most established schools in Antigua; it boasts very experienced, sympathetic teachers and is centrally located next to the landmark church of La Merced. The highly regarded administration at Don Pedro Spanish School can arrange accommodation for you with a local family while you study, and services also include provision of a shuttle to and from the airport at a very reasonable price. The school provides activities for their students every day; these include hiking and climbing the local volcanoes, visits to coffee planatations, trips to local markets, salsa dancing lessons, cookery lessons, and a weekly fiesta which includes a delicious lunch for all students that is excellently cooked by the Director, Caty, and her staff. If you wish to learn more about Don Pedro Spanish School, their website is www.donpedrospanishschool.com. They also have a really good Facebook page that has many student recommendations and photos of the school. There is a video to see about the school on YouTube as well. Check it out!

Hey Adam

I studied at El Nahual in Xela. This school is a non-profit, all the money the language school makes goes to fund a community school where you can volunteer and teach the children / adults English and Art. It's a really fun time. I only planned on doing a few weeks and ended up staying months! Their website is www.elnahual.org
Xela is a great town with access to lots of other places via bus. I learnt how to Salsa too!
Sure you'll have an amazing time wherever you decide to go.

Adios
Rachel