[federona]

Your data is secure on b2, it's simply an interface. Code is on github. DB should be dumped and saved to b2 daily. Not really unreliable.

[eru]

A week of coding is a long time, and you have to keep it up to date. (It's basically a quarter of a month of salary. That's a lot of money.)

Depending on contracts with an employer, there might be legal hassles as well.