倹約するのも大いに結構だが、彼は極端である。の英語

It is all very well to be frugal; but he goes too far.

So far from being extravagant, he is extremely frugal.

He is very frugal, not to say stingy.

He is frugal, to say the least of it.

For all his faults, he is a good fellow.

He is extremely frugal, to say the least of it.

He is more gentle than kind.

It's going some to say he's the best, but he is good.

True, he likes to show off, but he is kind and generous.

He is extremely frugal, not to say stingy.

He is frugal, to say the least of it.

True, he is very methodical, but to put it the other way around, he is inflexible.

He is thrifty, not to say stingy.

Beneath the polished veneer, he's a country bumpkin.

He is so frugal that you might call him stingy

He is very frugal, one might almost say stingy

He is very frugal, not to say stingy.

Although he is very serious, he isn't always quite well with it [he sometimes seems to be not quite all there].

He has some faults; even so, he is a good man.

He is extremely frugal, not to say a miser

I might almost say a miser.

He is clever, no doubt, but he is cold, too.

He himself says he's completely hopeless, but as someone with an intermediate level skill, he will probably be fine.

He was too obstinate, but on the other hand he was reliable.

With all his faults, he is respected by everybody.

The balance of public opinion remains in his favor.

He's a tenacious guy who always manages to come out on top. He's the kind of guy who can turn any situation to his advantage.

he had his flaws, but he was great nonetheless

He looks very kind, but he is unpleasant.

He may be called frugal―or stingy.