I bought my JBJ 45 last June. I had no issues with the glass, what I did have is the back wall bowed in the middle and separated from the silicon and was causing issues. JBJ was great about replacing it. I filled out their form, copy of my order, and sent a picture of the issue. They shipped a replacement tank the next day. Came by freight so took about a week for me to get it. I have been running that one since February and no issues at all. The stand in my opinion is not that great. The first one I got was missing pieces, the 2nd one was fine. However, they both assembled differently, the first one was almost all tiny dowel rods to hold it together. The 2nd was your typical furniture assembly with the cams. I would have never trusted the first one to hold anything so glad it was missing pieces.
I'm about to get a Red Sea Reefer XL425, but I will be keeping the JBJ 45 up in the same room, just on a different wall.