Im sure the sound is fine, but the imaging is terrible. Imaging doesnt seem to be a priority to alot of people here, I find it to be THE most important aspect of an install. I put my sub up front in that same area.
I would HIGHLY suggest kickpods. They really dont take THAT much time to make, maybe 1/2 hour per day for 2 weeks. They require no modification to your car and they will give those speakers what they need to shine.