Changing/cleaning the filter is kind of a pain but I've got it down.
I have had several HOTs over the years and they're pretty reliable. I have one currently on my reef setup to assist and aid in the cleaning, as well as moving water around, and it's great.
I do prefer turning it off when I feed because, like I mentioned, cleaning out the filter is a pain.
It's a great way to use Carbon or other filter medium and really helps gives the water that polished look.