I joined a mid-size company while they were still calling themselves a "start-up". There was a little bit of risk in joining, but not much. We are definitely not a start-up now.
The funding question is good, but, fortunately, they're funding is well publicized, so I don't really need to ask.
Also the options question is good, I'll make sure to look that over. I have some experience with options with my current company, but I'm going into this next position with more leverage, so I should probably ask the right sorts of questions, etc.
Thanks again!