~反面
One thing has an opposite side as well
You’ll be able to present two contrasting aspects of the same person, thing, or situation.

山のキャンプは不便な反面、静かで星がとても綺麗です。
yama no kyanpu wa fuben na hanmen, shizuka de hoshi ga totemo kirei desu.
What do you think this sentence means?
While camping in the mountains is inconvenient, on the flip side, it is quiet and the stars are very beautiful.
Present two opposing sides of one subject
~反面 presents two contrasting or contradictory aspects of the exact same subject or situation ("on the one hand..., but on the other hand...").
一人暮らしは自由な反面、寂しい時もある。
hitorigurashi wa jiyuu na hanmen, sabishii toki mo aru.
Living alone gives you freedom, but it can also be lonely.
父は厳しい反面、優しいところもある。
chichi wa kibishii hanmen, yasashii tokoro mo aru.
My father is strict, but he has a kind side too.
Attach 反面 to plain forms
Attach 反面 to plain forms of verbs, い-adjectives, な-adjectives (using な or である), or nouns (using である). The same subject is evaluated from two opposite perspectives.
この薬は効果が高い反面、副作用もある。
kono kusuri wa kouka ga takai hanmen, fukusayou mo aru.
While this medicine is highly effective, on the other hand, there are also side effects.
ネットで買い物をするのは楽な反面、実際に商品を見られないのが不安だ。
netto de kaimono o suru no wa raku na hanmen, jissai ni shouhin o mirarenai no ga fuan da.
Shopping online is easy, but on the other hand, not being able to see the actual product is worrying.
この仕事は給料がいい反面、休みが少ない。
kono shigoto wa kyuuryou ga ii hanmen, yasumi ga sukunai.
This job pays well, but on the other hand, there are few days off.
祖母は八十歳を過ぎても元気な反面、人の意見をなかなか聞かない。
sobo wa hachijussai o sugite mo genki na hanmen, hito no iken o nakanaka kikanai.
My grandmother is still full of energy past eighty, but on the other hand, she rarely listens to other people’s opinions.
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