Navan promo - is it worth it?

Hi all,

So I’m thinking about signing up for Navan because they’re having a promo where once you spend $100 on travel you get $500 in “Navan rewards”… is it worth it? I can’t find anything online about their “reward” catalog lol and it’s giving me a whole hassle regarding signing up (we use our gmail addresses for work and it won’t allow it as it views all gmail addresses as “personal”), so I want to know if it’s worth doing and what these rewards are all about. Anyone?