MellowHigh was met with generally positive reviews from
music critics. Lizzie Plaugic of
CMJ stated, "The trio proves it has a fat bag of tricks: floaty fast rhymes (Get’n Drunk), high gravity boom bap (Troublesome) and haunting alien lullabies (Nobody)." Kyle Kramer of
Pitchfork Media said, "These beats are huge, intimidating walls of sound. It may be that surprising people is a young man's game, and it's time for Domo Genesis and Hodgy Beats to settle into their comfortable roles as confident, reliable spitters. But for an album that sounds as off-the-wall as
MellowHigh, it feels like a bit of a cop out to be content with insubstantial rapping." Laurence Day of The Line of Best Fit said, "The overall result is something that painfully needed some outside influences, perhaps another producer to steer them in a worthwhile direction – it’s an aimless, winding record that occasionally stumbles upon greatness." Brian Josephs of
XXL gave the album a "L" rating saying, "MellowHigh has its thrills with some credit going to Earl’s playful verse on “Cold World,” but too often the album feels stagnant." Jesse Fairfax of
HipHopDX gave the album three out of five stars, saying "As a byproduct of a team that has actualized potential for groundbreaking contributions, MellowHigh misses the mark by a wide margin." Stephen Kearse of
Respect. gave the album a positive review saying, "In the end, what MellowHigh was going for – a solid demonstration of their ability to make interesting music – was definitely accomplished. Hopefully things will remain that way for years to come." == Track listing ==