I had a hailea and god was it crap, it cracked and flooded my living room, i'd only had it 3 months. the lid was awful as was the flowrate. i have 3 internal APS filters and they are great. the big APS bio one is so good but it takes up too much room in the tank. i'm keeping in my little 1200 lph APS internal one in with the new tetratec as i have my air pump attached to it and its well cycled. i'm going to put in cycled media in the new one too.
the aps internal one was a life saver when my external broke but from now on i'm done with cheap externals, its so not worth the worry and damage that's caused when they go wrong.