I’m a working mechanic, and the majority of my tools at work are Park. They’re almost always professional quality and are price competitive for professional tools—some things they do better than others, as with most brands. They are pretty good, in the US at least, of having spare parts and their pricing for sharpening and calibration are fair.

Pedros, Unior, Var, Hozan, Feedback, Shimano etc are all pro quality and I’m not tied to any of them in particular. For some non-bike-specific tools you can sometimes get better pricing and/or quality with non bike brands—Bondhus, Wiha, Wera, Knipex etc. Boutique stuff like Abbey and EVT are sometimes significantly better, but you have to pick your priorities with regard to price.

Some not-quite professional tools are fine for home mechanics. You just need to be aware of when you really need quality.

I’m sure I have at least every brand I mentioned in my tool kit at work and more.