Does it count as reliable if I only have sample size of 1?

Beyerdynamic. Had DT770 pro for 8 years before they "broke" (cable connection failed, I think it's still fixable--making them last for many more years---by someone with skills I don't have, and they could have lasted more if I handled them a tad better.)

Recently I replaced them with DT770 pro X and they sound perfect to me.

I never had any problem with any Kindle that I had. Paperwhite is a wonderful device

Patagonia since they also offer repair services in the event of damage and are relatively ethical.

This might sound weird, but Apple. I was NEVER disappointed by any of the products I bought. Sure, they are fucking expensive. Sure, they sometimes release really dumb products that most people probably shouldn't buy (e.g. the 2015 MacBook). But if you make all the right considerations before your purchase, I'm pretty sure you will have a product that won't disappoint you. At least that's been my experience so far. That doesn't mean that I'm perfectly happy with everything, for example I'm trying to switch away from an iPhone (I will definitely keep using macOS laptops/desktops though) for privacy reasons. I wasn't really disappointed here, when I bought this phone, I knew what I was getting myself into, but Google isn't much better.

Proton for secure email/calendar/whatever they offer now. I've been a subscriber to their paid plan for years, really happy so far.

IVPN and Mullvad for a trustworthy, private VPN provider

Fitbit for fitness trackers. I had one of their smartwatches and never found it useful. The trackers are stripped down versions that do everything I need and have a week of battery life.