Pretty much. I have one on a MaxiJet 900. According to the sheet it came with, it brings down the gph to about 300-400. But it does give you different directions for the water to move instead just one stream.
I bought three of the the SureFlow 1600/Maxijet 1200 combos. They should arrive in about a week. I don't have a specific plan for the corals yet but I don't plan anything too complicated. Moderate flow should be fine.
Keep an eye on the Sureflow mods. I have one in an inline mixing tank and another in the 120 gal sump. Mine seem to seize up (sometimes running backwards) every few months and require a vinegar bath. They can get quite warm when seized. I have been tempted to try the Ecomod version to see if it is build any better than the Sureflow.