Is it worth getting this update since the last one, or should I get the next one?
Depends what you consider "worth it"?

There are two new puzzles in the Ancient Temple, 1 Kamasutra page, 2 sex scenes, plus a hand job (does that count as ½ a sex scene

) and general story progression.
In my opinion it is always worth to download each update, as the "update only" takes less time to get but only follows up from the last version.
If you want to get a ton of contents at one go, you'll have to wait as many versions as required to meet your standards/wishes and download the entire game.
Update to latest version is usually posted first though, keep that in mind.. it might take a day or two from those get uploaded until full versions get uploaded. Just saving ya some complaint time if you decide to wait for a ton of content in one go
