When LED grow lights first came out they sucked but now they got them tuned in so well you can actually get more than 1 gram per watt even up to 2 grams on the newest ones. No heat half the cost and they last long. I've loved my LEDs and soon I'll be upgrading...probably a quantum board.
I am excited to see what you think so I'll follow for sure.
The weakest link in the chain controls the growth speed. It only takes one thing to not be enough and it starts to slow down. All part of the joy of growing. Also, I'm sure if you had time to do several grows you could get everything dialed in perfectly and get the best possible results.