hontou ha motto hiroi heya ga yokatta keredo, yatin wo kangaeru to kono kurai ga tyoudo ii.

本当は is a very common expression meaning actually, to tell the truth, or if I’m being honest.

The は here marks 本当 as the topic, so the nuance is something like:

• As for the truth...
• Actually...

It often introduces a contrast between what someone really thinks and what they ended up doing or saying. In this sentence, that contrast continues with けれど.

もっと means more.

In もっと広い部屋, it means a room that is more spacious or a bigger room.

It is modifying the adjective 広い, so:

• 広い = spacious, wide
• もっと広い = more spacious

Both can be used, but they feel a little different.

• 広い focuses on spaciousness or floor space
• 大きい focuses more generally on size

For rooms, 広い部屋 is extremely natural when talking about wanting more usable space. It often sounds more like a room with more room in it, rather than just physically larger.

Because いい / よい does not take a direct object with を in this kind of pattern.

Here, X がいい means:

• X is good
• I prefer X
• X would be better

So:

• 広い部屋がよかった = a bigger room would have been preferable / I would have liked a bigger room

The が marks the thing that is considered good or desirable.

This is a very common point of confusion.

In Japanese, X がよかった can express a wish, preference, or regret about what would have been better, even if the English translation is not simply past tense.

Here it suggests something like:

• I would have preferred a bigger room
• A bigger room would have been nice

So the past form adds a feeling of reflection: the speaker has already chosen or ended up with this room, and is looking back on what would have been ideal.

Yes, よかった is the past form of いい.

いい is irregular because it comes from よい. Its inflected forms usually come from よい, not いい.

So:

• dictionary form: いい or よい
• past: よかった
• negative: よくない
• past negative: よくなかった

That is why いいだった is incorrect.

けれど means but, though, or however.

It connects two ideas:

• ideally, the speaker wanted a bigger room
• but when rent is taken into account, this size is best

It is a softer and slightly less blunt way to say but than some English learners expect. In Japanese, けれど, けど, and が are often used to connect contrasting ideas very naturally.

It means when you consider the rent or considering the rent.

Breakdown:

• 家賃 = rent
• を = marks the thing being considered
• 考える = to think about, to consider
• と = when, if

So 家賃を考えると literally means something like:

• if you think about the rent
• when considering the rent

In natural English, it often becomes given the rent or for the rent.

Here, と is the conditional/temporal when/if particle.

In this pattern, Verb-dictionary form + と can mean:

• when you do X
• if you do X

So:

• 家賃を考えると = when you consider the rent

This is not the quotation particle と. It is the conditional/temporal one.

このくらい means about this much or about this size.

Because the sentence is about a room, it refers to the room’s size or spaciousness:

• this size
• about this much space

It is a slightly vague expression, which is very natural in Japanese. The speaker is basically saying the current size is about right.

This is the same basic pattern as X がいい.

• このくらい = this size / about this much
• がちょうどいい = is just right

So が marks the thing that is just right.

The structure is:

• X が ちょうどいい = X is just right

ちょうどいい means just right, exactly right, or a good fit.

It is used for many situations:

• size
• timing
• amount
• distance
• price

In this sentence, it means the room is not ideal in every way, but considering the rent, the size is about right.

Yes, it often carries a mild sense of regret or unfulfilled preference.

The feeling is something like:

• Honestly, I would have liked a bigger room
• In truth, a bigger room would have been better

But it is not dramatic regret. It is more like calmly admitting that the ideal choice was different from the realistic one.

Yes. Like many Japanese sentences, it leaves out what is understood from context.

A fuller English-style version might be:

• I actually would have preferred a bigger room, but considering the rent, this size is just right.

Japanese does not need to explicitly say I here, because it is obvious from the context that this is the speaker’s opinion.

Yes, in natural English that is often a very good way to express the idea.

Literally it is when considering the rent, but depending on context, you could think of the nuance as:

• for the rent
• for the price
• given how much the rent is

So the speaker is balancing ideal size against cost.

It is basically:

• 本当は = actually
• もっと広い部屋がよかった = I would have preferred a bigger room
• けれど = but
• 家賃を考えると = considering the rent
• このくらいがちょうどいい = this size is just right

So the sentence has a very common pattern:

• ideal situation
• contrast
• practical conclusion

That makes it a very natural everyday sentence.