I switched to Apple machines several years ago, and have been very happy with them generally.
One convenience is there is an Apple store in the mall about 10 minutes from my home, so when things go wrong, I know where to go. Thursday night a screen-related hardware glitch developed (which, to be clear, in this case was not what I would call a product defect; let's say it was a me defect). I ran over and they said it would probably need to be taken in for a repair.
Not being ready to hand over machine just yet, I went home to pull off some data, and then booked an appointment. The downside to the Apple store is you really need to book an appointment online, even for (or especially for) things involving repair. My walk-in Thursday I didn't even get up to the Genius Bar; one of the people up front just suggested what they thought was going on. And my Apple store, at least, is painfully busy, all the time. I got an appointment for Saturday afternoon, nothing available Friday. I went in Friday morning before heading to work on the off chance I could get it in then; they said the walk-in waiting time was 90 minutes to 2 hours. I should have expected; the walk-in waiting time always seems to be measured in hours.
That's the downside. The positive is, when you have an appointment, they are great. I had no wait when I went in Saturday, and in the past, if they're running behind, they've let me know if I have to wait for my appointment and estimated for how long. They are courteous and professional. They will let you know what they are doing as they test your machine, what needs to be done, and provide estimates for how long it will take. Their setup really engenders trust. I also have found their repair times reasonable and understandable. My machine is back to me and all is well Monday afternoon. (Thank you, Apple Store.)
I haven't had to deal with them often over the last decade -- I'd say a reasonable number of times considering the number of Apple machines I've had and in family use. Overall this experience is typical. There's anxiety in going in for any sort of repair process, but they did an excellent job.
Finally, I imagine this is not useful advice to people reading this blog, but do back up your data regularly and/or automatically. One of the first questions they always ask is whether you have a backup, and it's always a good feeling to know that if worst comes to worst you just put your state on a new machine. Someone else at the Genius Bar while I was there had their computer put back in working order but their data was lost; they weren't the sort of user that it was a real problem, but the occasional reminder that backups are important is always helpful.