I think one of the biggest differences between comp benchmarking providers and RealPage is that two companies given access to the same benchmarks often make very different compensation decisions.

Some companies decide to pay at the 90th percentile of the market and some decide to pay at the 50th.

RealPage was much more proscriptive which is part of what tips the balance over into collusion vs just providing market statistics.

Zillow provides a zestimate for rents, which serves a similar market summary purpose but without the mechanism to enforce compliance and therefore is totally fine.