When my Reefer failed, I changed over to an acrylic tank. I don't think I'll ever change back.
There are some things I miss about the glass tank. I haven't really had any issues with scratching though - I knew it was a concern to start with (my Reefer had multiple large and hideous scratches in it), so perhaps knowing that acrylic was more prone to scratching made me more cognizant from the start. I won't say I haven't put any scratches into it, but unlike the Reefer scratches I can only see these ones if I really contort myself to catch them in the light. I did spent a whole lot of money on a Mighty Magnets cleaner after finding that the other alternatives just weren't cutting it. I didn't see myself spending $200 on a scraper when I started this hobby in 2009, but spend $200 on a scraper I did.
But with a couple of exceptions (which I could have likely designed around had this tank not been something of a rush job), I absolutely love this tank. First - the weight savings are real. With my Reefer, I had to really strain to actually move the thing. Dollies, leverage, straps - moving the thing absolutely killed me every time I had to do it. With the acrylic tank... I could just lift it up onto the stand, move it around, reposition it. When it's clean, this tank just absolutely sparkles in ways that the Reefer never did. And it's incredibly nice to not be worried about seams.
That said, it's not a rimless tank, and I do miss that. I can still mostly get into the tank and do what I need to do, but I did have to toss one of my rocks because it was too big to fit through the access hatches. That's another nice thing about the tank, though - when the tank is closed up, there is absolutely no way for a fish to jump out of the tank.
