First and foremost this is not a review on the performance of the filter itself. I will come back to update my review after a couple weeks or a month to really know if this is product does what it says it does, which is remove algae.
With that said, it fits. Not sure what all the reviews about it shrinking is all about. Maybe they havee a different sized Aqueon Filter? If that's the case, that's their fault. Make sure you know which Aqueon water filter you have before buying. I have an Aqueon QuietFlow 10 which is exactly what this filter is for and there aren't any fitment issues.
Shipping came fast. The packaging was a bit squished since it came in a typical plastic bag instead of a box but it shouldn't cause any issues. Just fluffed up the filter a bit and it was fine.