It depends how much room you have between the two areas but I would imagine sides would likely steam up/get wet. I see this as a bath lovers paradise, particularly hopping from one experience to the other.... Like in a spa

Remember one of the advantages of this arrangement is all the water in the room flows to one drain. The tub doesn't even need an overflow so you can get the water as high as you like. You don't need to have a connected drain either just a plug to let it drain on the floor. (you do need to size the drain to handle that flow) I like the use of a ceiling supply as this allows the tub to be moved around until you find a site that doesn't cause a splash problem. From a staging of expense, you can leave the tub out of the initial build and bring it in later when you find the style you want or the deal and a better price.
The history of this type of room is the Japanese traditional bathing. You shower to clean yourself, then once clean you get in the tub to relax.

This type of room is an awesome fit for oblong bathrooms that otherwise wouldn't be able to fit a decent sized shower in addition to a tub. ... such a great use of what would otherwise just be thoroughfare space.

Thank you for your question!

The shower is directly across from the tub on the opposite wall, so the tub does not get wet.

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When I do wet rooms I use a ceiling supply and a free standing tub with no overflow for the best soaks. This allows you to add the tub at any time if it doesn't fit your initial budget.