Hi @Jess4683
I don't know if you still need thoughts on this, but the 2 occasions I accepted a guest with several trips but no reviews have been problematic. Two of the worst guests I've had and I thought, I think I understand why the previous hosts did not leave a review, so I made sure to leave one.
I would avoid those until you are more experienced. I've started to decline these guests (although I accept guests with no trips and no reviews) and feel really angry with hosts who didn't think anything of not warning other hosts.