An acrylic aquarium is much more durable (leakproof and virtually unbreakable) and light weight than a glass aquarium of similar size. But the drawbacks to acrylic aquaria are the restricted openings in the top and the fact that their appearance is so easily marred by scratches on the viewing surface. Those limited openings mean you can’t use the usual hang-on-the-back aquarium equipment that is otherwise so handy.
If I am planning an aquarium that will include lots of live rock, I almost always prefer a standard glass tank. It’s just too difficult to wrestle large pieces of live rock through those restricted cutouts in the top of an acrylic aquarium, and way too easy to scratch the viewing surface while you’re attempting to arrange the rockwork through those limited access ports.
But an acrylic tank is a nice option if it’s plumbed properly so you can install and maintain all the necessary equipment in the sump and if it’s a tank that won’t include lots of live rock.
Best wishes with all your fishes!