很好用英语怎么说？？

excellent
very good
great

nice/great/marvellous/wonderful/fantastic/terrific/
amazing/incredible/brilliant/neat/awesome/
be out of this world

wondeful

It's very handy!

It goes well

很好,用英语怎么说？？ or 很好用, 英语怎么说？？

If it's the 1st one, use "very good, great, wonderful, fantastic, fabulous...."

If it's the 2nd one, use "very handy, easy to use, pretty intuitive..."

Sophie