It might be the vocals, the production, the drumming, the keyboards, whatever. What albums do you find frustrating because they are otherwise good except for being ruined by one factor?
For me:
Borknagar: Quintessence (the songwriting is great, the production is god awful)
In Flames: Reroute to Remain (not a great album but it would be OK if not the dodgy vocal effects and flat sounding riffs)
Necrophagist: The Onset of Putrefaction (cookiemoster vocals)
Cynic: Focus (It was the early 90s, maybe we should forgive them for getting overexcited about vocal manipulation)
At the Gates: Slaughter of the Soul (snare snare snare OK we're bored now)
Ephel Duath: The Painter's Palette (beautifully constructed heavy yet smooth jazz and they've got the most grating tuneless screamer doing vocals for fuck's sake!)
Solefald: Red for Fire/Black for Death (when you've got a bloke who can sing like Lars Nedland, what is the obsession with the cartoonish harsh vocals?)
Opeth: Ghost Reveries (the new keyboardist sucks end of story)
For me:
Borknagar: Quintessence (the songwriting is great, the production is god awful)
In Flames: Reroute to Remain (not a great album but it would be OK if not the dodgy vocal effects and flat sounding riffs)
Necrophagist: The Onset of Putrefaction (cookiemoster vocals)
Cynic: Focus (It was the early 90s, maybe we should forgive them for getting overexcited about vocal manipulation)
At the Gates: Slaughter of the Soul (snare snare snare OK we're bored now)
Ephel Duath: The Painter's Palette (beautifully constructed heavy yet smooth jazz and they've got the most grating tuneless screamer doing vocals for fuck's sake!)
Solefald: Red for Fire/Black for Death (when you've got a bloke who can sing like Lars Nedland, what is the obsession with the cartoonish harsh vocals?)
Opeth: Ghost Reveries (the new keyboardist sucks end of story)