I just received the BRS single reactor and set it up yesterday and it's great! Super easy to connect up, and it's pretty cool how the output of a maxijet is compatible with the push fittings.
On a side note, I also ordered an MJ1200 and it's the new style. Made in China. We'll see, but I know how these things go. It is cool how it includes the propeller and shroud for high flow option.