First of all, this is not a high-end piece of furniture, or aquarium...that being said, for the money, I am very happy with what I received. You get a large, Plexiglass bowl with four small Plexiglass posts that support the glass top(which is a decent thickness)...this bowl sits in the base (sturdy enough, but again, not high end material). As far as not fitting together well, as another reviewer stated, there is just not much to fit. Once the bowl is in, you fill with water and it settles nicely into the base. No one mentioned that in the base is an area that holds a light-bulb - the cord runs through a notch at the top of the base, so your table is illuminated. This is very cool. On the safe side, I decided to roll up a thick towel and place it in the base (totally hidden) just in case there is a leak problem. But the manufacturer has supplied all kinds of contact info if there is an issue. I was sparse with the gravel, as I believe 5 gallons of water weighs about 50 lbs, so I wouldn't stress this Plexiglass more than necessary. Also, the heater provided is way too big, but I can tell you, brand new, that heater sells for around $45 dollars so I am using a smaller, submersible heater I have, and selling the one that came with. All the decorations are nice quality as well...the filter is not the best type but suits this table well as it sits in a designated area at the bottom of the bowl. I plan to put a few dwarf frogs in it unfiltered, heated and lit up. If you wanted to use all your own accessories, the value of the ones that come with this table I estimate at around $70. So really, for the money, its fun and versatile. Personally, my big worry is my clumsy cat jumping on the table at the wrong angle and somehow flipping the glass top off (it only rests on the bowl, for easy removal/cleaning). She has been eyeballing it like crazy but hasn't had the cohones to hurl her body on top of it yet.