I got this for the batch of tadpole eggs we scooped from the pond behind our house. I chose this tank over others because it has a larger water area and a gentle slope for the tadpoles to get onto the land. Oh, and because my kids are nuts about Star Wars.
It came with a neat-o pamphlet on swamp ecosystems and frog development. The construction is nice and sturdy, though the taped-on picture on the back had to be worked around when I scooped fresh water out of the pond. Also, Yoda's cave/house doesn't quite fit snugly into the floor base, so I worry that in the future some frogs will get stuck under the gap.
Nice features: the ground is soft plastic and very rough in texture and a long shallow slope makes it easy for even tadpoles without legs to rest on the ledge. The large water area gives them much more area to swim around in than other tanks. It also stays well lit as half of it is exposed to light.
Special advice: don't get the tadpoles they offer via mail order- their cost and mortality rate make them unwise. Instead get tadpoles from a local pond (or pet store), and get your water from there, too- it contains all the oxygen and algae they need to thrive (the instructions recommend bottled spring water as tap water often goes through softeners which add salt). We even pulled some weeds from the pond to put in the water, and we watch them strip-feeding tiny algae off them. Getting them from a local pond is also smart because when you are done, you can set them free and know they belong in that ecosystem. As with fish, change out 1/3-1/2 of the water every week or so.