It's not bad, but still looks too rendery for it to be photorealistic.
The model itself is good, but the material itself still looks kinda fake. You're going for that brushed metal look, but it pops too much, it's too stark. I found this shot to compare it against...
This one has a curved face, and it's obviously seen some use, but still. Look at how the light reflects off of it. It's not completely uniform. The brushed scratches are just barely noticeable and blend into the surface more subtly. It wouldn't hurt to fade those out a little bit, maybe throw in a light specular to break up some of the reflection along the front.
I'm hardly a pro myself here, but I think the biggest thing that separates a decent enough render from a photorealistic one are the tiny imperfections. Nothing is ever perfect or completely uniform. Right now, your stuff is a little too perfect and a little too uniform.