It would help if you used Invisalign aligners instead of off-brand aligners because Invisalign has a strong reputation in the dental community. When you use an off-brand aligner, you throw away the reputation you need and might not get the same quality product.
When it comes to your dental health, you need the best products. Invisalign will always get the job done. Alternatively, off-brand aligners might not straighten your teeth how you want.