great company, I have the DIY K2 kalk stirrer kit which is awesome and their auto top off kit I use as a safety device (DIY Davy Jones' Locker) for my skimmer to prevent it from flood my house again.....long story there, but if you use a lot of TLF coral epoxy all at once, a skimmer will go crazy :)
great quality and craftsmenship in their products, they use a combination of PVC and cast acrylic in their reactors and skimmers to keep the expense to a minimum, the finish is not perfect but definitely exceptable for the price, you may see some milling marks on the edges of some of the acrylic pieces but where they need to fit together well, they do, and glue together great.... DIY directions are well printed out and easy to follow, even for a first time acrylic project build like mine but if you'd rather them build it, they do that also...
any questions with their products, just shoot an email to 'em, it will be answered, likely, within 24 hours