'it's a little bit tricky' is correct and usable in written English. You can use this phrase when something is not very easy. For example, "Solving the equation seemed easy at first, but it's a little bit tricky.".
It's a little bit tricky".
It's a little bit tricky when you first have it but when you get used to dismantling it, it's fine".
But because it's a little bit tricky to report on, with nothing except a skeletal agenda handed out, no footage or photos given to the press, the number of mainstream journalists reporting from the event will drop from 3,000 to about 11.
It's a little bit trickier to adjust with pants on than off, so you might have an accident the first time or so.
It was too light for the embroidery, so it was a little bit tricky when they walked.
That's a little bit trickier, which is why Newsle was born.
It can be a little bit tricky doing it on your own.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com