The company gets projects which are completely out of the box. If you work on them you learn more than what you would normally learn by working for several years in other companies.
The work culture is really cool.
No office politics at all.
Employees are valued and respected.
You get paid more than what you would get elsewhere.
Minpunten
As mentioned by others yes salaries do get delayed but hey this is a start-up and money is what a start-up struggles with. So if you are working on cutting edge projects you cannot really complain about getting salaries late because you do get paid be it late or on time. As soon as the client pays for the invoices the money is disbursed to the employees without any delay.
The company has employees who have been around for more than 3 years - need I say more?