FWIW, we had a great experience in CK on Harmony 5/29. If Rodrigo is still onboard running it, you're in good hands! Very friendly and funny in addition to making sure everything runs smoothly.
I know one of the two suite concierges has changed but Junior (who was still there last I heard) was very helpful with requests, especially pre-cruise via e-mail. I was the designated contact person for our extended family of 8 for the cruise. There was an app issue with our comedy reservations and he told me he'd personally walk us down to the show if he had to.
Good luck with the AC! Ours went out a couple months ago. Turned out to be a quick fix and fortunately we have two units (one downstairs, one upstairs), so as long as one is working, we can survive.