Bryson Viehweg
GBExcellent learning tool Content is designed simply to increase readability, and attached to examples that help solidify the principles. Very organized and navigating courses and content is smooth. Fair customer service that strives to evaluate needs on an individual level.
LNT
ROAmazing resource It's the kind of resource that any student should have. It has a great approach, and you learn by doing. Besides the website being an amazing tool, their team is incredibly responsive and helpful for any support issues.
Al M
DEDisappearing classes Although the classes are interesting and the math is (sometimes) well explained, there are also a lot of issues with Brilliant: *Classes disappearing in the middle of doing it. Algebra 2 for example *Classes skimming through essential piece of information, e.g. Introduction to linear Algebra. I'd really recommend a mix of other solutions if you want to further your understanding of mathematics. Khan Academy & 3Brown1Blue (and many other free resources) provide better explanation and have the same level of interactivity.
Marian Negru
NLAmazing App They really deliver what they advertise. I really enjoyed how courses are structured and they help on improving your problem solving approach. Once you start you can't stop, keep saying one more, one more. I love it.
Justin Donohue
GBInteractive activities I enjoy the interactive activities. They help make the learning process tangible. Their support team is great, too.