Looking Nice bro! Your girls turned out great, I've had really good results using that Heavy 16. I have a 3x3 as well, and that's where my P450 is. I ran just that when I had 2 plants in there. When I added a few more I put a 400 hps in there also. When I was debating on what LED to get. I was asking what they recommended for the size of my tent and they said a P300 or P450. I could probably fit them both in that tent if I wanted. I have a 2x4x5 tent I use to veg and I have a HO T5 and that P300 and that works perfect in there. IMO from when I was looking and trying to decide what to get. It seemed as if the light's from Advanced and Platinum look and seem pretty close to the same, except the price. I know LEDs are expensive, but with a 5 year warranty and the results, I have a feeling you'll be happy with your choice no matter which one you get, as long as it's a good quality one. Like you said, I haven't heard anyone complaining about their LED...I think that's speaks a lot about the results right there. Hope that helps and doesn't make your decision harder!