I have a 92 Corner reef. While a beautiful tank, I would suggest getting a cube or rectangle tank. Makes it easier to light and also provides more usable room under the tank for equipment. The corner sump is just very crowded and hard to work in.
Also, I have almost no access to the overflow due to how far back and deep it is vs being in a regular 90 rectangle.
Wouldn't trade my corner tank, but also would think hard about setting up a second one as a reef.