Many bathroom layouts place the toilet as the first thing you see when the door opens. It is better to position it less visible if the space allows. Also consider spacing — there should be enough room for your knees and enough space on each side to sit comfortably.
When renovating, check the condition of the toilet drain. A poorly aligned drain causes smells and leaks. If you are changing to a new toilet model, confirm the rough-in measurement so it matches your existing drain position. The goal is not just a new toilet but a comfortable and problem-free installation.