The pace is extreme, so multitasking and personal prioritization are important personal traits.
Self starters can thrive here but someone who needs clear direction might struggle, especially if they aren't consistently asking for clarity.
Projects are often murky and self contradicting, someone who just does what they are told will not perform well here.
Like most small companies there is no room to "phone it in", meaning everyone has to be working consistently and at a high level.