I don't recall bad reviews of the tank. The only thing that comes to mind is that the background tends to detach from the back once the tank is filled with water and float on the surface. I believe many people will detach the background on purpose. Haven't heard anything about the filter being noisy but I haven't been actively searching for reviews on the Fluval Ebi/Flora. Out of the two, I've heard that it's better to go with the Ebi since the C02 kit that comes with the Flora is a waste.