A lot of people have been saying that the filter stops working after a while, but I've had mine for over a year and it's been great. My betta fish seems extremely happy in the tank, its big enough to put decorations in, but no so big that it takes up a lot of space. The filter is a bit loud, but it is a filter, what else would you expect? It's well lit, but make sure to turn off the light to let your fish sleep.