YES!! I have two of the 1st Gen models and I absolutely love them!! They are a bit expensive, but they are worth it IMO!!
I'm looking into upgrading the magnets on the wet side of mine as well as the control box so that I can simulate changing currents!! But just being able to adjust the speed is great and the biggest plus to me is there are NO wires in the tank!!!!
i had a mp40 gen 2 worked awesome lots of flow and if you have two then u can sink them up which would be cool! pricey but everything in this hobby is... id say if u want a fun toy then its worth the price