I bought a gyre 150 upon initial release and love it, as it creates ridiculous flow in my 126g tank. However, I've always had an issue with creating interesting and visually appealing rockscapes while trying not to block flow. This has always been very difficult. Thus, I do have spots in my tank with extremely low flow. After reworking my rockscapes several times, I've just come to the conclusion that I need to supplement the gyre with additional flow and will probably do so by adding 2 MP40QDs to alleviate the dead zones. I love the idea of having such controllability with the vortechs (I've never owned one) and not having the power cord in the tank is ideal. I think both have advantages and disadvantages, so having both is the perfect solution! (albeit a very expensive solution, lol)