Pros
This is an opportunity to work on a really cool product with a massive and rapidly growing global customer base. Your kids will be impressed. :-) New leadership is driving badly needed change, including a better focus on availability and a transition to a new architecture to support the next stage of growth. Management brought it from Intuit (and elsewhere) over the past couple of years are very good.
Cons
The organization is recovering from years of poor leadership that has left a bloated and inefficient organization. Many of the bad reviews you are seeing on Glassdoor are from a minority of disgruntled employees who are unwilling or unable to adapt to needed change. It is no longer acceptable to be paid just to come to work which is a good thing in my book!