Ese zapato de tacón me queda bien, pero me canso enseguida.

Because zapato is a masculine noun in Spanish, so the demonstrative has to match it:

• ese zapato = that shoe
• estos zapatos = these shoes

Even if the shoe is a high heel or a women’s shoe, the word zapato is still grammatically masculine.

Also, zapata is not the normal feminine form meaning shoe. It means other things in different contexts, but not the everyday word for a shoe.

De tacón literally means with a heel or heeled.

So:

• zapato de tacón = high-heeled shoe / heeled shoe

Related words:

• tacón = heel
• zapatos de tacón = high heels
• tacones is also often used by itself to mean high heels

So this sentence is talking about a high-heeled shoe.

Spanish can use the singular if you are referring to one shoe in particular or speaking about that type of shoe in a more general way.

Here, Ese zapato de tacón means something like:

• That high-heeled shoe
• That kind of high-heeled shoe

If you wanted to talk about the pair, you could say:

• Esos zapatos de tacón me quedan bien, pero me canso enseguida.

That would mean Those high heels suit me / fit me well, but I get tired right away.

Quedar bien is a very common expression used for clothes, shoes, hairstyles, colors, etc. It means that something:

• fits well
• looks good on someone
• suits someone

So:

• Ese zapato de tacón me queda bien = That high-heeled shoe fits me well / looks good on me

With clothing, quedar bien often combines both ideas: the item physically fits and also looks flattering.

The me shows who the shoe suits / fits well.

Structure:

• me queda bien = it suits me / it fits me well
• te queda bien = it suits you
• le queda bien = it suits him/her

Examples:

• La camisa me queda bien. = The shirt fits me / looks good on me.
• Ese color te queda bien. = That color suits you.

So in this sentence, me is essential because it tells us the shoe looks good on me.

Because the subject is singular: ese zapato.

• Ese zapato me queda bien. → singular subject → queda
• Esos zapatos me quedan bien. → plural subject → quedan

The verb agrees with zapato, not with me.

They can sometimes be similar, but they are not exactly the same.

Me queda bien is especially common for clothes and appearance:

• it fits me
• it looks good on me

Me va bien can also be used with clothes in some contexts, but it more often means:

• it suits me
• it works well for me
• it goes well for me

For clothing, quedar bien is the more natural choice here.

So in this sentence, me queda bien is the best option because we are talking about how the shoe fits/looks.

Because me canso means I get tired or I become tired, while estoy cansado/a means I am tired.

That is an important difference:

• me canso = I get tired
• estoy cansado/a = I am tired

In the sentence:

• pero me canso enseguida = but I get tired very quickly / very soon

This expresses the change into that state, not just the state itself.

Yes. Cansarse is the reflexive form, and it commonly means to get tired.

Conjugation:

• me canso = I get tired
• te cansas = you get tired
• se cansa = he/she gets tired

The me here is part of the reflexive verb cansarse. It is not the same as the me in me queda bien, even though they look identical.

So in this sentence there are two different uses of me:

1. me queda bien → to me / on me
2. me canso → part of cansarse = I get tired

Enseguida means:

• right away
• very soon
• quickly

In this sentence, the most natural meaning is:

• I get tired very quickly
• I get tired almost immediately

So:

• pero me canso enseguida = but I get tired right away / very quickly

Yes. Depending on context, enseguida can mean either:

• right away / immediately or
• in just a moment / very soon

For example:

• Voy enseguida. = I’m coming right away / in a second.

But in this sentence, with me canso enseguida, it clearly means very quickly.

Yes, pero simply means but.

It connects two contrasting ideas:

• Ese zapato de tacón me queda bien = That high-heeled shoe fits/looks good on me
• pero me canso enseguida = but I get tired very quickly

So the contrast is:

• it looks good
• but it is not comfortable enough to wear for long

Yes, it is understandable and natural. A speaker from Spain might also say similar versions such as:

• Esos zapatos de tacón me quedan bien, pero me canso enseguida.
• Me quedan bien, pero me canso enseguida con ellos.
• Ese zapato de tacón me queda bien, pero me fatiga enseguida.
  (less common in everyday speech)

The original sentence sounds fine, especially if the speaker is referring to that particular shoe or that style of heel.

You would make the demonstrative, noun, and verb plural:

• Esos zapatos de tacón me quedan bien, pero me canso enseguida.

Changes:

• ese → esos
• zapato → zapatos
• queda → quedan

Everything else can stay the same.

It can mean both, depending on context.

With clothes and shoes, quedar bien often suggests:

• it looks good on you
• it fits properly
• it suits your body/style

If you want to focus more strictly on size, Spanish might also use verbs like:

• calzar for shoes
• venir bien in some contexts
• ser de mi talla = to be my size

But me queda bien is very common and natural when talking about clothing and shoes in general.