Pros
You'll learn what not to do by seeing how to communicate and lead poorly. There is very little positive to say here. The engineering culture was solid, but drivven around in a clown car by its leadership.
Cons
A company without a product, customers or a realistic /compelling vision. Unethical and immoral leadership.
Instead of throwing the towel in when funds dried up and trying to right by employees, it instead misled them into working for 3+ months unpaid. The company is way under water but continues to pretend in public like everything is great.
If you are legitimately thinking of working here, take a few minutes to message some ex employees on linked in to learn about its history.