The Helix is popular with the members, but I wouldn’t fill a club with anything. I’ve got a huge amount of equipment diversity, so while I wouldn’t say I’ll fill a club with Helixes, I’d also say that I wouldn’t have a club without one.
The Helix provides diversity & options on cardio. With cardio, it’s helpful psychologically for members to have different choices, and the Helix provides options that just aren’t out there with other machines. The different look and focus of the Helix also helps attract new members – especially if you’re a good salesman and can talk up the options it provides – but it’s the quality of a machine that helps in retaining members over time and Helix has that too. It’s also not real high priced – it’s well priced for what it offers. I do like the Helix, I think it’s a good variation, and I’m glad you invented it.