They have a bunch of assault bikes at my gym, but they weren't the Rogue version so I can't speak specifically about the Echo
More broadly, I think assault bikes are like bad girlfriends - the more you give them the more they take. I nearly killed myself and lay on the floor seriously concerned about my well-being for 30 minutes after a "How many calories can you get in a minute?" challenge at the gym a couple years back
So, generally speaking, I think assault bikes are great!