Yes, I've has bad experiences with some APC stuff myself, but they actually make a couple useful itens that are half decent. I have a billet aluminum filter heat shield and oil cap from them, I also have a VAC gauge from APC (It works pretty good so far, time will tell if it holds up)
I don't like their lighting products much though... They have poor quality control on that stuff.
Very seldom will I get an APC item, however, their billet aluminum products are of an excellent quality, just avoid everything else and you'll be okay.