Would I trust a product developed by the PRC? Yeah, that's a hard no from me.
The UAE perspective on the trials:
Coronavirus: 15,000 register as volunteers for Covid-19 vaccine trial in UAE
UAE: 15,000 volunteers from 107 nationalities vaccinated with COVID-19 shot
How this has played out here is...been a little insane as Dubai and Abu Dhabi took very different approaches. It's nothing more than the two ruler's take on how to manage the response. Dubai and AD are in a friendly but cut throat competition with each other on just about everything, so the CV-19 response wasn't a surprise.
My co-workers and I fully expect that if the vaccine is deemed successful we'll receive a text directing us to go take said vaccine...along with everyone in AD.
Oh, the national sterilization program that ran for a few months:
UAE sterilisation programme: disinfectants are harmless to humans and animals
Yes, they were spraying the sidewalks. Also, cars. And streets.