I have the Evo 13.5... currently houses a clownfish and a royal gramma with some soft coral and a piece of Moti Cap. I've never used a Par meter on the light, but it doesnt seem to be hindering the monti's growth.
The number one problem that I have with teh tank is that for some reason I keep getting some sort of slime algae in it. I can't find a reactor small enough to fit in it that I can run GFO or BioPellets. I do have the PS2 skimmer that Fluval sells for it, it's not all that great. Also, there is a hole in the lid for feeding that I had a clown successfully jump out of once, I have since 3D printed a cover for it.
It should work fine for what you are describing.