Worth the money?

[Aquattro]

yup, it would work well.

[Chin_Lee]

if you can foresee yourself possibly planning to upgrade, consider the 100 or 135 for the following reasons:
rs100 is 2 inches shorter, almost identical sump space, can handle more
rs 135 is only 2 inches higher, slightly bigger sump space, can handle even more.
But otherwise, the 80 is fine for what you have

[fkshiu]

It'll work fine if you have the sump room. There's precious little you can fit under a standard 46-gallon bowfront stand.