I've been running them now for close to 10k miles.
I'm happy with them. Paid a lot less than what I would have paid with most of the bigger names. I'm at the limit with this turbo, so I'll probably continue to run them until I get twins... At that point, I'll go back to shopping (and researching) again. I'm not sure he is still offering injectors, so I'm assuming you are talking about a used set. Use the search function as suggested to find out more!