You really are something

"You really are something, you know that"

In this case, "something" can mean a bad or a good thing, it is related to the context.


"You're really quite something"

"Quite something", it can be literally translated in Portuguese  as "bastante coisa".



Once you get used to the smell, it's really quite something.
Assim que se habituar ao cheiro, é algo bastante notável.

Once you get used to the smell, it's really quite something.
Quando se acostumar com o cheiro, é realmente incrível.

It's really quite something to see you all grown up, Enid.
É impressionante ver você crescer assim Enid.

It's really quite something to see you all grown up, Enid.

It's... it's really quite something.
É... Tem uma coisa aqui...

I have observed a very satisfactory stability of exchange rates, the absence of upheaval on the exchange market, which is really quite something, at present.
Verifico que há uma estabilidade bastante aceitável das taxas de câmbio, uma ausência de agitação no mercado de câmbios, o que, nos tempos que correm, é de certo modo significativo.


Fonte:context.reverso.net