"Awesome stuff" refers to things or experiences that are impressive, exciting, or highly enjoyable. It is a way to express enthusiasm or appreciation for something that is really great.
Looks like you have a lot of awesome stuff in your blog! (thediydreamer.com)
Tech is pretty expensive, but if you get a good deal on your gadgets, you can snag some pretty awesome stuff for less than $ 100. (businessinsider.com)
You guys seem to always come up with really awesome stuff. (humblemechanic.com)