Now Røde actually released an upgrade to the Wireless GO and features dual transmitters, a safety track, and 32bit float recording (so you have a backup or can record without a camera).
The Røde Wireless GO has been my go to wireless mic system whenever for years. I have tested many alternatives. The Røde system always stands out with it's sound quality.
One thing to think about: When you are considering getting the Røde Wireless GO, have a look at the Røde Wireless Pro since it has the same features but comes with a charging case, two lavalier mics (worth about $100 each), and all the accessories to connect the kit to your phone or camera!