Rabbi Weisner's KCL (Lakewood) sent out a Shoichet to inspect a large shechita for them. He came back with an excellent report. We have a video to show how the shechita operated the day before the "scheduled-inspection" and the day after the "scheduled-inspection". NOTE: It was not at the Yeshivishe Shechita (whatever that is?) As Advertised "Rabbi Weisner's KCL approves Yeshivishe Shechita" what else is new? That should give you comfort, depending on what you are looking for.
The day of the scheduled inspection was a "show 'n tell".
Reb Moshe Feinstein, Z"L told me that a shechita must have an open door policy and if any changes are made when a visitor comes to inspect to stay away from that shechita. reb Moshe added "even if they can defend the ietems they do when there are no outsiders".
Limiting visitors to .....e.g. Smicha Rabonim, Pulpit Rabonom, Roshei Chaburah should raise a red flag.