Are cheap Amazon breast pumps like NCVI or Paruu actually safe and effective?

Verified-purchase reviewers and r/ExclusivelyPumping threads report strong real-world results from NCVI and Paruu pumps, including good suction and adequate output. The trade-offs reviewers consistently flag are shorter motor life (some report degraded suction after a few months), less consistent quality control, and limited customer support compared to established brands like Spectra. They're closed systems and generally considered safe, but expect to replace them more often.