As I've been participating in Secret Santa this year I've been thinking about how long it's been since I added anything but a rules question to the site. I decided to see what games I've played the most but not reviewed and put in a few. When I looked at my plays (not an exhaustive list) I found Aquarius near the top.
so, what do I think of Aquarius, rebranded Seven Dragons?
Cost: At about $10 (US) for a single deck of custom cards this game is on par with others in the hobby gaming arena. Non-gamers may feel it's a bit steep.
Accessibility: Aquarius is super accessible. This is a game that is so intuitive that many people will be hunting for that hidden complexity. How can a game be this simple? Draw one, play one, match the symbols or do what the card says. The only potential complexity is the bonus card rule and even that is apparent as long as one person has played before.
Replayibility: Aquarius doesn't offer much variety from one game to the next. The symbols are irrelevant to game play. The only variety comes from the people your playing with and the cards you each get dealt. For me, that was enough for me but if you need that "unique" experience each time, this may not be for you.
Fun: I really enjoy Aquarius for what it is, a light filler. It's no Agricola or chess but it mostly avoids the randomness that Looney Labs is known for in its flagship, Fluxx.
Summary I think this is a good game to have in your stable. I and most of the folks I've played with have found it fun. It teaches quickly to gamers and non. It plays 2 - 5 with roughly equal complexity, making it perfect for when you don't quite have the group(s) together you want for the rest of your game night.