"I have the largest size of this tank with the cute green lid. I appreciate how the bow-front design makes this cheap plastic container look more like a quality fish tank. I also use a SmallWorld pump and filter (designed for tank and bowls ten gallons and under--it's also sold at PetCo) to give my baby fantail goldfish a healthier home.
I'm a college student, and this tank fits well into my dorm space. It's light-weight and durable, and has survived the trips back and forth down the hallway to the bathroom for water changes.
The only problem I have with the tank is that it scratches easily, but that's to be expected from acrylic. Mine already had scratches in it when I bought it off the shelf at the store. I'd recommend going to the store to personally choose one with few scratches, rather than order one online."