A great product well thought out. Each glue joint and part has been built and designed beyond most off the shelf reactors. Better value for money than other reactors. I like the option for a stand alone unit and an addition to a hang on bracket. My only annoyance with this which I guess would just be R&D for future is the square base is designed for a better stable platform yet becomes obsolete when a hang on bracket is used. Other than that the flow through the reactor is tunable to perfection.