Is this a red flag in a listing?

[Adrian Rae]

I'm seeing "Cash only - no comps for an appraisal" in the description of a listing for a multifamily in a small town and am wondering what the downside of this could be. The all cash payment seems like a major downside being that I'd have to look at private money which could delay the cash flow while that's being paid off...but what else am I not considering here? Thanks!