All good here.
We have an emperor 250 running on a small cichlid tank that works great. I have the emperor 400 on my 30g reef upstairs and love it. One of my friends has a penguin filter he isn't happy with, and my ex-girlfriends penguin mini doesn't work the best (biowheel has issues), but as far as their high quality products go, I'm really happy with them.
Also have 2-3 heaters all of which have held up and are pretty nice.
Just my $.02