First, whoever said that the motherboard holes don't line up, they're wrong. They line-up perfectly with older full ATX boards. I'm using an old MSI AM3 790-FX GD-70 (circa 2010ish) motherboard for my build. I haven't tried reversing the motherboard to utilize onboard PCIe slots, but the holes are drilled properly if you go by the diagram provided.Secondly, the others who were critical that the GPUs won't fit, they are correct, but you don't really need the middle support bar if your cards are long enough. If you install the middle support bar, most GPUs will slant pretty dramatically - the workaround would be to drill holes for additional placement. I'm using a Gigabyte GTX 1660 Ti in the photo, with five MSI 1660 Super's on order. If they're all similar in size, I'm just going to remove the middle support bar and let them rest on the other end. The cage comes with some 3M non-slide padding. I'm not using mine yet - waiting to see if the MSI cards are long enough.There are also slots on the bottom deck to install cards if you don't want to install them on top as seen in the item description. A couple caveats here is that if your cards are too long, you won't be able to install fans. I had to take one of the fans off to demonstrate placement of a card if you use this method.Yes, if you have an old ginormous CPU cooler, you'll need to get a low profile one, as you can tell in the photo. I have a cheap $20 one coming in today. I'll see whether it'll fit.If your motherboard doesn't have onboard display, you'll need to get a 90 degree HDMI adapter, or take out one of the fans if you want to use one of the GPU display ports. There isn't enough clearance.To summarize:1) Middle bar prevents proper installation of GPUs - solution is to take the bar off or drill additional holes.2) You'll need to use a low-profile CPU cooler3) If you plan on installing cards on the lower deck, fans may not fit4) Not enough clearance for DP/HDMI cable if your motherboard doesn't have onboard videoI'm still tinkering with this rig - I saw someone with a photo of a 5-GPU rig that had the middle bar installed - not sure how he did that. I may send the frame back depending on whether the MSI cards I have on order will fit. This may be a great option if you're looking to add two or three cards sitting alongside an open frame ATX desktop, and pull cables over to the frame that way. There are a lot of really expensive junky 2-slot carriages out there, this would be a great option for that use-case.Three stars! Not bad, but not great.Update: I finished building my rig, and it's actually not bad at all. The middle bar, and the reason the card bends slightly upward, is because the bottom of the risers that I use have 1.5mm tape, which along with the 1.5mm tape that comes with the rig bends it upward. The other thing I had to do was screw it on the bottom hole (previously, had it screwed to the top).Also, I didn't mention, this frame also comes with a starter button. My motherboard already had a start button built-in, just one thing less you have to worry about. The low-profile fan I got works perfectly.I'm adding an additional star because everything works as expected. Adding photos of the end product.