How often should I come to get results? Is once a week enough?

For a noticeable and lasting result we usually advise two sessions a week - it's the sweet spot, the body has time both to work and to consolidate. Once a week also brings benefit and is great for maintenance. Three times a week makes sense for serious, neglected conditions, but most people don't need that. The most important thing is regularity in the first month: that's exactly when the body rebuilds itself, and after that everything goes more easily.