I've never owned an acrylic tank but here's my take on it from reading on fish forums and seeing them in person at people's homes.Then, there's the issue of what material to choose from next -- we were seriously considering going with an ACRYLIC tank rather than glass, being that we had two glass tanks that leaked on us back to back (the first worse than the second, obviously), but these are expensive and we'd have to save up some more money for one. Also, I don't know anything about acrylic tanks; do they make lids/hoods that fit as well as on glass tanks? Are they truly shatter/crack-proof? Can HOBs be hung on them as easily as on glass tanks? I know they scratch easily, but outside of that, what would be the downside of going acrylic?
Acrylic tanks can still crack if mishandled, must have the bottom of the tank fully supported on a plywood deck or if cleaned with the wrong product that can cause crazing and weaken the acrylic.
They don't make a hood for an acrylic tank though you may be able to buy a canopy for one if you get the tank, stand and canopy from the same company.
Normally you can NOT use a HOB filter on an acrylic tank IF it has a complete acrylic top with only holes to reach in to add decor, fish and maintain the tank. Some acrylic tank manufacturers do have cut outs in the top that MAY accept a HOB filter but you would have to verify that before buying.