As with anything, you do have some limitations when you’re working with a virtual stage. You’re limited to the 3D furniture that’s available—if you can’t find a 3D model, you won’t be able to place an item in the scene. (You can pay extra to have some services model examples of physical furniture.)
It can take some time to complete DIY staging on your own and, if you’re inexperienced, the virtual staging image may not look entirely convincing. But most professional services can create a virtually staged photo that looks almost identical to physical staging.