Do they charge to use the in-room safe and if so how much? If it's with a lock, could I use my own?

Yes they charge for the lock a few dollars a day

They do not charge you anything because the safe is in the room, I think it's with code, sorry but do not use it

thanks for the answers. I read some reviews they charged so that's why I was asking. Good to know they don't (anymore) :-)

No charge for the safe.

You hire the lock from reception

No charge on the safe but it is not designed to use a lock. Code only.

There is no charge for the use of the safe. I'm not sure there is a way to use another lock on them, though.