There's no medical aid benefits and few opportunities for travel unless you're upper management (despite having offices on multiple continents).
Luno is scaling and hiring aggressively, which has led to hiring some people who don't embody the 'moontality'. This could end up rotting the company from within. if left unchecked.
There are currently few opportunities for learning and development (although there is meant to be a new learning and development plan coming soon, so this may change).
There is very little information around salary expectations, which makes it difficult to approach managers about earnings.