Let me begin by telling you that I really like the SCF (and nearly all of the C or cohesive implants) for the right patients. Inspira implants in general were designed to be more filled than traditional implants of the same size range. If you remember the saline implants, filling them to the top of their fill range usually resulted in a better look and feel than staying at the lower range of fill. The same thing can be said about the Inspira implants. When you add the cohesive gel to the same basic design, you can reduce palpable irregularities (bumps) and the feel of folds. So when do I like them? I like them when you revise implants that have folding artifacts. I like them when I place the implant above the muscle (very little rippling, if any). I like them in thin patients with little gland to cover the implants. The firmness can be a problem if the rest of the breast is soft. But There is a new soft version (Inspira SoftTouch) which may solve that problem too. As for the cost, well, they're expensive, but for the right patient, they're worth it.