If your bathroom has low or unstable water pressure → avoid shower columns with multiple outlets running at the same time, as they won’t perform properly.
If the renovation is done without breaking tiles → check the existing water inlet distances and whether the column can cover the current outlets.
If you want a stable water temperature → choose a shower column with a thermostatic mechanism, especially if it’s used by more than one person.
If the shower is used daily → check whether the diverter is replaceable and if the shower head has silicone nozzles, as these are the parts that wear out first over time.