Ill defend the sunpod because Ive had the 2x150w 36" for 2.5 yrs and my tank looks amazing (pats self on back).
But if you were looking for the "best" there were certainly other options that you could have gone with that would have cost you more money upfront and likely more on your monthly electric bill.
The sunpod is more of an economic option for HQI metal halides that are proven to be reliable and effective. Very good, IMO, but certainly not the "best."
To get more spread on your tank, try raising the fixture a few more inches above the tank. The fixture leg stands puts the bulbs pretty close to the water. If you had a way to raise the ficture, you will get more light wider in your tank.