I have this sump. Well, I have the ADV-200 for my 75G.
I love it, havnt felt the need to change it, but there are a couple of nuances to watch out for. These are eshopps gen2 sumps, when I upgrade sump, i will go with an eshopps gen3.
Stuff to watch out for
1) No sock holder. Have to buy socks big enough to hinge onto the return slots acrylic.
2) only one side access to fuge, if you install backwards (as i originally did on my first build) you will need a mirror to see into your fuge. (see images below of my fuge, and imagine if i had it installed facing the backside of the tank)
3) Scratches easy, but since this will be under your DT, isnt a major concern.
4) I have had the sump for going on 3 years. I recently rebuilt my tank (Moved out of NY into NJ) and the sump was a bit warped. The acrylic panels used to build the sump arent as thick as I would like. However, no leakage, it's built extremely well.