Park Tools are good quality, but definitely a step below Wera/Wiha/Snap-On. For general purpose tools, like hex keys, I would go with some other vendor where there's better value. The advantage of Park Tools is for bike specific stuff, they're reliable and get the job done. Basically, if you need a tool to remove a bottom bracket, you can buy the Park Tool version and know that it'll work. There are higher quality bike specific tools (like Abbey) out there, but you're going to pay for it. Park is a solid middle ground.