Synergy Spanish - Spanish Grammar without Grammar

At earwormslearning.com I stumbled upon the keyword, accelerated language learning, so I googled it. One of the entries that came up was synergyspanish.com. The site's author claims to teach one of the best darn Spanish classes out there, so I tried the demo, which you get by supplying an e-mail address, after which they send a link.

The course feels familiar - there are elements resembling unforgettablelanguages.com, Margarita Madrigal's Keys to Spanish, the grammar approach of Michel Thomas and more. And yet, taken together, it's unique. And it's useful. The core structures taught, the way they're put together, and the way you're challenged to make your 80,000 sentences with 138 words (properly combined, of course) really opens the doorway to using Spanish as a set of combinable elements for creating your own language, as opposed to regurgitating other people's phrases.

You can only demo the first four chapters, so I don't know how far you get. But I was impressed with what the first four chapters squeezed in. If you already speak quite a bit of Spanish, this might be below your level. But if you've got as far as Buenos días, ¿Cómo está? and not much further, this looks like a great resource to make your Spanish take off.