All glass or acrylic? Personally I think they made tanks better back in the day. New does not always mean trust worthy. Keep an eye for bowing, broken center braces and leaks every day. If I see any stress I replace the tank and don't take chances. I prefer all glass aquariums and the only leak I ever had in 30 years was a 55g I had for just a couple of years.
A proper stand that truly supports the tank..Make sure everything is level..Never ever move the tank with anything in it...be careful with your rocks and place them were you want them and "lock" them into place, don't let them just drop or fall. All these things play a role in the life of the tank.