A relative of mine lives in Switzerland and was totally enthuastic about Julian and his videos. She didn't know much about crypto but since she started watching his videos seems to have gained a pretty good understanding about a lot of important stuff going on in crypto space.
So I am not sure about TenX, I only had a short look at the project but I do believe it is solid and has the longevity many other projects are missing.

And because of my friend, I think Julian is actually a trustworthy and knowledgeable guy.