Avoid.
I had a highly disappointing experience with my AirPods Max repair, which I had sent in because they were having connection issues (three amber lights). When I received the invoice for the repair, I was not informed of their diagnosis for the malfunction (liquid damage), only that work needed to be done on the headphone jack. I trusted that they had done their due diligence to at least try to ensure that the repair they suggested would solve the issue, or at least survive for more than about 60 days after the repair. That was a mistake. They did not.
When the issue reappeared, I reached out again to see if they would cover their work under their limited warranty, which they note has an exclusion for, of course, liquid damage. What happens when they arrive back for diagnosis this second round? They diagnose this malfunction as due to liquid damage, and that they are not covered under the limited warranty. I am now being asked to either 1) spend more money on yet another round of repairs that likely will not fix the problem or 2) spend $40 for my own broken property to be returned to me, after already spending at least $230+ on the original repair.
If they had disclosed that liquid damage was the original cause and were not confident that they could repair my headphones, I would not have authorized the repair in the first place. It seems disingenuous for them to propose a repair when they were aware the original issue was liquid damage, and not covered by their limited warranty.
Turnaround times for support also took ages (it took around 2 weeks for them to respond to my inquiry about the limited warranty, at least 1 week for the original repair request), and the person handling my emails was condescending when I expressed my disappointment with my experience.