I've been using them for 3 months exactly, and on my 5th advisor. An advisor is your sole point of contact for the loan... questions, concerns, documents, everything. They don't tell you when the advisor changes, you just notice by chance the little initial emoji of your advisor changed. Realize this means the previous one left, or got fired.
They have no real ticketing. Each worker has a unique and seemingly private email and text...so you start fresh with each one. To the point you don't even want to ask questions, because they'll just fire the person you asked and you'll start fresh again...a week before closing...
The site and flow are slick, that's what drew me in. But the company as a whole is odd and I'd highly recommend not using them.