Do Inflatable Travel Pillows Actually Feel Comfortable?

I've seen a lot of people recommend inflatable travel pillows because they pack down so small and are easy to carry. They seem like a great idea, but I'm curious how they actually feel on longer trips.

If you've used one on a flight, train, or road trip, was it comfortable enough to help you rest? Did adjusting the air make a big difference, or was it still hard to find the right support?

I'm also wondering how well they hold up after regular use. Any issues with air leaks or durability?

I'd really like to hear what worked for you and what didn't. If you've compared an inflatable pillow with memory foam or other types, which one ended up being your favorite and why?