Yep, the design of the yacht is exceptional, but it lacks any interior other than the bridge and the lounge. Bedrooms, bathrooms, etc. are all separate products (not even included in the bundle of this yacht) and that's the reason they are different in the games this yacht is used in.
When I was halfway through Spaced Out, I started planning for the next game and having learned from the mistakes in Spaced Out, I wanted to have a consistent environment (in Spaced Out, there are like 5 different products for the environment) so when this yacht was released as a bundle with the decorations and the helicopter, I bought it right away. Imagine my disappointment when I found out that there are no interior rooms in it
. Anyway, I managed to find another ship before I started working on Water World which had more than enough rooms, so this yacht was reassigned as Amelia and Rebecca's ship.