"Feels So Good" is a song by British singer-songwriter and record producer S-X from his fourth mixtape, A Repeat Wouldn't Go a Miss (2021).

Philip Logan of CelebMix described "Feels So Good" as "an optimistic and highly addictive dance track that sees [S-X] develop his trademark melancholic melodies and innovative hip-hop beats, this time infused with eighties influences and futuristic finesse.

"[4][5] Courtney Wynter of GRM Daily wrote, "S-X injects positivity into the song with his bold vocals on a high-spirited beat.

[7] Melanie Lapierre of The Honey Pop noted that "Feels So Good" infuses influences from Justin Timberlake and Maroon 5.

Courtney Wynter of GRM Daily wrote, "The feel-good nature of the song is perfectly captured in the [video] where we see S-X having a whale of a time at an intimate gig.