[16] Spin awarded the album a rating of 8 out of 10, writing, "Gundred's richer-than-you-expect voice is the key to these jagged little pillows, whether dryly noting that a guy's 'Just a Creep,' soaring on 'Coming Down,' or lacing her echoes with sorrow on 'Hold Your Hand,' a reflection on her mother's death.

"[15] In Lindsay Zoladz's 7.6-out-of-10 review, Pitchfork lauded the album's melodic risks within the genre of garage rock revival, "Only in Dreams isn't a perfect record, but a little while down the line it might end up looking like the beginning of something-- the first steps forward for the band, or perhaps a raising of the bar for this entire revival.

"[12] The New York Times echoed this viewpoint in Jon Caramanica's positive review, which stated, "Only in Dreams ... seethes with a beautiful, raging confidence, louder and fuller than anything they’ve done before, and better than the onetime peers they’re leaving behind.

"[10] musicOMH's Gareth Ware's 4-out-of-5 review also agreed that "[Only in Dreams] showcases a remarkably assured collection of songs.

[13] Joe Marvilli from Consequence of Sound, in a negative review, felt that Only in Dreams needed more variety, stating, "You can only take so many variations of the same theme.