Although little research has been done, according to Webmd (https://www.webmd.com/mental-health/addiction/what-is-delta-8), users report therapeutic benefits that Delta-8 helps with depression, substance use, nausea, appetite, and pain relief. Some adverse side effects have been reported including: confusion, anxiety, slow/fast heart rate, numbness, low blood pressure.
This abstract reports that Delta-8’s psychoactive affects are about 66% less than Delta 9 THC.
From personal experience with Delta-8, the “high” is a very calm, relaxed, peaceful state. Followed by really deep, nourishing sleep. And, I wholeheartedly agree that it produces the same “munchies” as with Delta-9.