Getting started with reformer pilates: We do not offer drop-in public reformer group classes. All reformer group class participants have first completed an initial private lesson as a prerequisite to joining a group. Group classes are offered by reservation with a handful of drop in classes available to established students each week. Trying to register for a reformer group without having completed that lesson will result in an error message. You can read more about this process here under the heading “reformer pilates”.