When you start to compare various models of spas, you will eventually come across the number of jets you will want, and this could be a decisive factor for purchasing a spa. Do not use the number of jets as a decisive factor when purchasing your jacuzzi, the number of jets does not make the spa have more quality.
Choose quality over quantity, if you really want a nice hydromassage, get a spa that has a good variety of jets. Big and pulsating, like the Moto-Massage DX, for big muscle groups, such as the back and shoulders, powerful directional jets to relax a sore neck or relax tired leg muscles like the calves, and a powerful jet to soothe sore feet.