I struggled for a long time with using my CPAP machine, trying many different types masks but I just couldn't stand the claustrophobic feeling of the equipment on my face and head, not to mention the hassle of the cleaning and maintenance involved. I love how small and simple the bongos are to use and clean.
If you breathe through your mouth while sleeping the bongos won't work so you might need mouth tape or a mouth shield in conjunction to get the full benefit.
I recently had another sleep study while using bongos and a mouth shield and there was NO EVIDENCE of sleep apnea noted!