I’ll throw this in again: why three rooms? For three people, the whole thing is more than tight. Why not target singles or couples and then have more homely and well-furnishable rooms? You have to consider, even if Yvonne has now shown you a possible furnishing, that doesn’t mean your potential tenants will have exactly those kinds of furniture and then it becomes problematic.
2.7m of wardrobe space is still not generous (for me that would be too little, you also have bed linen, possibly summer bedding, towels, ski gear, winter coat, etc.)
Personally, I wouldn’t rent these apartments, not even as a single. The same goes for larger rooms, a somewhat more comfortable bathroom (because then it can become big enough to actually move around in) and sufficient space for additional storage, and the situation looks different. If I have followed correctly, there is no cellar but possibly space in an attic, right? Is it freely accessible, meaning without having to fold down an emergency staircase?