I purchased a property on roofstock about 9 months ago, and figured I'd share the gist of what I dealt with on this thread. I had a number of small issues arise, but to their credit, roofstock (after some emails and finally tweeting) did make things right.
I was signed up with a point person, and it quickly became clear that there were some talking points they were not going to deviate from. The 97% of the asking price being one of them. There seem to be a lot of exceptions to that one here on biggerpockets, and I eventually got my house for 14% lower than the asking price.
Really, I guess you have to go in with your eyes open, which makes this a very valuable thread. Roofstock is not a turnkey provider, and shouldn't be viewed as one. When your agent pushes back against your requests, don't take it. You can get another inspection if you want, as much as they like to tell you that you can't. It just slows the process, which they really don't like. They have the lease on file, and you should be able to see it with any sensitive information blacked out, they just don't like to give it to you. If you want something from them, push them for it, and keep the email records to show them later.
Basically I dealt with a number of people who gave me contradictory information, and yes, the inability to communicate did cause problems. But again, Roofstock stepped up when it was necessary and rectified most of the self imposed issues. It also helps to send out a strategic tweet when the communication slows to a drip.
As for the information provided on the website; as many have said before DO YOUR OWN RESEARCH. You cannot rely on their appraisal, don't feel beholden to their "certified PM's", and don't trust their rent estimates. They are all basically arbitrary. If you are not comfortable about something, don't do the deal, even if "your" roofstock representative will get annoyed by your inability to commit. I lost a deal because I was not willing to sign a PSA without any seller disclosures, none of the sellers manage the property themselves and therefore cannot sign "NO" to any disclosures. But alas, some do. You just have to find the one that checks all your boxes.