It seems that in the past few weeks, every other post is questioning the quality of Ttokkyo. I'll give my unbiased opinion again.
I've used Ttokkyo winny tabs, Dbol tabs, EQ, Cyp and Deca. Got great results from all of them. Never got sick or had test flu, no swelling or infections from injections. Yes the Cyp stings, but no worse than Organon Sust in my opinion. I'll keep using it because it works.
Some people claim to have had bad results from Ttokkyo products. Maybe there are bad batches out there, but I haven't seen any. I've used older and newer batches and haven't had any problems yet. Until I run into problems like some others have with Ttokkyo, I'll continue using their products. I don't care about who makes it, brand loyalty, price or whatever. I only use it because it works.