I have used dang near every type of water mover thru the years. Surge tanks, maxi jets both regular and modified, sea swirls, sea sweeps, koralias, votecs, gyres, closed loops, penductors off my returns, waveboxes, wave pucks plus some I’ve probably forgotten about in my 20 years in the hobby and lastly Tunze. By far Tunze is the ONLY brand/type I purchase anymore! Simple design proven over many years on the market, larger models are controllable and are extremely quiet! They move a ton of water, are directional, are easy to clean, good customer support and take a beating. Not sure how you can beat that in this age.