I think they need to get this working ASAP. You can take a good 2k AP with stable latency and change it to a 3k AP and change nothing else, and the performance will be worse if you have customers modulating less than MCS12 in our case.
The 3k is supposed to be an upgrade but for us, without Air Fairness, it's a downgrade in experience for our customers.
Please please please consider moving this up in the firmware so a couple bad customers can't affect the experience for all the rest of our customers. Thank you