Been using these switches for 1 year now, and i have no bad things to say about them. I lubed then with krytox 205g0 , and bag lubed the springs. They sound amazing, looks amazing and in total are just excelling amazing for the price. If you're new to keyboard modding, and you're on a budget, JWK blacks are the way to go.
A cheap alternative to Cherry MX Blacks that I'd encourage anyone to try (especially for the price), with the correct modifications this is can definitely be all you'd ever need from a linear switch :D
The switch is pretty standard stock, but I lubed them with 205 and they sound and feel amazing. Highly Recommended!
As the title says, most of them worked, but some was faulty and didn't work at all. I thought it might of been my keyboard at the start as there was no bent pins, but as I switched it out for another switch, it worked again. Switches were like $4 for 10 so I am not complaining.