I kind of like it.
The quick magnetic disassemble , the directional and controlable flow, as well as the simple venturi system are major pluses.
I would use it as a spot polisher for a couple of hours, among various tanks, cleaning it daily. I would not plan on using it as the main filtration in any aquarium.
I used to have a couple of Marineland Hot Magnum 250's that I used in this manner. They lasted a long time. These Sicce's are even simpler and thus probably last longer. I like the 800 model.
Thanks for sharing.