When deciding between reformer pilates and mat pilates it's important to consider your fitness goals and preferences.
Reformer pilates uses a machine with various resistance levels, allowing for a more dynamic and challenging workout. It also provides support and assistance making it suitable for individuals with injuries or limited mobility.
On the other hand, mat pilates focuses on bodyweight exercises performed on a mat using resistance bands, balls and foam rollers. It builds requires core strength and stability. Whilst mat pilates can replicate some exercises that are done on the reformer there are many exercises that are unique to the reformer.
Most pilates practitioners prefer using the reformer if there is one available because of the greater range of possibilities.
Consider your fitness level, desired intensity, and access to equipment when making your decision.