Thats cool - I have to say we as a bunch are hard on freewheels, and for reference I alone have snapped about 6 pawls, the lockrings are a nightmare, snapped countless springs etc on ENOs, stripped 2 ratchet rings and cracked 2 hubshells (even on the new improved shell)on a Pro2T hub.
So if you can make an ENO last that well, I'm sure an Echo will be fine. Having said that, if you're happy with an ENO then you may as well stick to it