You choose from two subscriptions: Credits for € 35 per month (30 credits) and Unlimited for € 50 per month (unlimited workouts). Your employer benefit is deducted from these amounts, so what you end up paying depends on the arrangements with your employer.
Is your employer not partnered? Then you work out with an ambassador subscription; the employer benefit doesn't apply and Unlimited isn't an option. You'll see the exact prices and your personal benefit after logging in.