Yen helped me several months before I actully bought anything from him. His advise on maintaining my native mantids was right on and helped me a lot.
After several months of bugging him with newbie questions, which he always answered promply, I placed my first order. The order which consisted of adults, nymphs and oothecae arrived very quickly. It was packaged professionally. All the critters made it in good shape.
Yen is not only a credit to the mantid hobby, but he is also one fine human being.
Tom