What would you want to know from a company you’re joining?

Friends,

After a rollercoaster of a job search, I have thankfully gotten a verbal offer for a startup that looks very promising!

 I've taken it upon myself to reach out to the reps there to ask about their experience with the company. For some context all I really know is, the US reps for this scope are killing it, while the Canadians (my territory) are not.

What questions would you ask to a team you're soon to join?