Do you need solid healthcare and/or other benefits? Because you're probably not going to get that.
Do you enjoy wearing multiple hats - simultaneously?
The advantage is that I will be get exposure to all the new technologies.
That's the one plus. And that's about it. Unless it's something you can learn at home in your free time.
They say they will add 20% of the salary in stock vesting over some time.
Take some of the cash salary and buy lottery tickets. It's worth about the same "over time".