Any time Joe,
There are lots of options out there, Modular Marine and Exotic Marine Systems are the front runners now adays however there is a significant wait for them as they are built to order. On the flip side of that, they will come up with whatever overflow box you need for your specific system.
Synergy Reef has there shadow overflow, the same one
@theMeat has. Mixed reviews, some love them, some absolutely hate them. Biggest issue with them seems to be when you attempt to push a lot of water through them. There design lends itself to be noisier than others due to the different heights between the internal weir and the external box. But, lots of happy customers out there so it really depends on your system demands.
Fiji Cube is relatively new to the overflow game, however it's not a very complicated thing (These are similar to the Eshopps overflows). I have heard they have Excellent build quality using thick acrylic.
Eshopps, well, they get the job done. As you eluded to earlier there have been a lot of failures with them. However they almost exclusively relate to poor instructions when it comes to the placement of the gasket. Because they only come with one gasket, gasket placement is incredibly important and there instructions got it wrong.
In any case, with any of these overflows, I usually suggest someone goes out and buys a gasket sheet to go between the tank and the outer box. They are relatively inexpensive depending on where you are. Is it required, absolutely not, however a sheet will provide the overflow box with even support up against the tank and relieve some of the stress on the box after you hang plumbing off of it.