I took a listen to "The Message Is Clear". It was pretty good. One thing though the lead synth right off the bat at times pierces a bit. Nothing a tiny bit of EQ can fix.
I can't help you to much on the maximizer question. If it's the mclass maximizer it does the job fine for me. I wish maybe there was a tiny bit more to it. Anything that is lacking for me is my skill at engineering and mixing/mastering the sound not the maximizer.
For Reason 6.5 there is a Rack Extension for a maximizer that's $80.