I have been using howtounlockspanish for some time to learn Spanish and am very pleased with my progress. Iciar manages to make the lessons a very good combination of learning and fun. She mixes the lessons up very well combining speaking, reading and listening. There is also a good combination of structured and more informal. She is very reliable and never misses a lesson.
I highly recommend anyone at any level to use howtounlockspanish. I started as a complete beginner and can now hold in depth conversations.