They seem ok, the only thing I noticed in installing was that they were about 3 millimeters too long for my unite. I was able to finally close the door on them however.
I don't know why it clearly states "actual size" when the actual size is about 1/4 inch less in each dimension (as is usual with filters). But it works. Clearly it had been cut down from a larger filter and put back together. But since it's a size I can't find in any stores any longer, it was a lifesaver.