This is a fantastic resource for learning Thai, especially after trying various other systems that basically frustrated me, and wasted my money.
The Spaced Repetition is great, and the site implements well, and the best part of it for me, is that (at least in the early stages) every word or phrase has 4 or more potential answers that are shown. So although I am currently guessing about half the time, of the guesses I do make, I get perhaps 80% correct because I have some basic knowledge of the language. I enjoy and learn from this MUCH MORE than simple "right" or "wrong". The platform also teaches Dutch and French, and I am assuming these languages work out well also. I am also studying MUCH MORE. The last week I have averaged 1.5 hours a day!! Wow is this a change for me!