i've had 2 since they first came out. i really like mine but they can be finicky and have parts that have to be replaced as they wear out. if the tank is big enough that size isn't an issue, i'd probably go with tunze for simplicity, plus the ability to put them on a controller. ecotech seems to be hung-up on thinking 'our controller is better than anything else, so why would you want to put it on anything else'. but their 'controller' is really just a wave timer, not a controller (i desperately want a 'night mode'). it could be that they are working on their own full tank controller and don't want to dilute that any.