If you’re talking about Rabbi Bistritzky’s hechsher there, there are two different ones, blue and white. One of them is supposed to be good and acceptable, the other one not so much, but I don’t remember which one is what. Good luck!
M H : How do you know who in the cr is answering you to know if to rely on their opinion? Would you eat in just anybody’s house? Then probably you’ll be OK with whichever Hechsher there is. Do you have a problem with Rabbanut in general?
gofish: Why does RAbbi Bistritzky give 2 different types of Hechsheirim?