Fine!

很好。

It's my cup of tea.

这正是我要的。

I can't grumble.

我没什么可抱怨的。

It is tailor-made.

这很适合我。

I am quite pleased with your arrangement.

我对你的安排很满意。

I don't think I've ever eaten anything quite so good.

我认为我从未吃过这么好的东西。

It couldn't be better!

太好了！