Is it safe to download now ? Or do i wait more to play this game?
If you look at the history of Harem Hotel releases, you will learn a lot about deciding when to download.
When it comes to beta's and pre releases: Don't do it.
When it comes to the first full release, such as 18, and just about every full release before that: Patience is a virtue.
Typically there are two bug fix releases after the full release comes out.
With version 18.0, there were 2 revisions with bug fixes, making the release number 18.2.
I'm waiting, and watching the comments in here, because you can learn a lot about a game by reading the comments before downloading.