They do NOT take care of travel expenses for you, as of October 2015 ... you will still be taking a gamble by footing the expenses upfront

It's funny that I am seeing this since this is exactly what's happening to me, I had to fly there, stay in a hotel all in their invite email claiming to be covered, and it's been over a month since I submitted my expenses, and have been ignored since.

Did you end up getting reimbursed eventually? I am reading this a bit late, and shelled out my hard earned money up front. I'm a student and definitely can't bear this loss. My interview is going to happen in a week. I will let you know if they treat me well.

Did they start reimbursing yet?

Don't need to worry about this anymore. I have an onsite to San Francisco in Sep, they will take care of these form me: giving them my onsite date and departure city, they will get tickets and hotels done. Looks like they've hired american express to take care of this for interviewees now.