The term "professional" is not entirely correct in this Ste, however, the equipment is "good". Now the hardware: - The bellows smells strongly of rubber or solvents which function as a bellows is thereby not beeinteächtigt :-) - The spray bottle served its purpose and is dense. - The cleaning brush loses now and then bristles and the plastic handle is loose and falls off occasionally. - The cleaning pen does not work precisely contrary to the description, but it fulfills its purpose to my satisfaction. - The microfiber cloths work very well. No streaks, no fluff. - The disposable paper towels are not arrived in full Umpfang. I got delivered only 26 instead of the specified 50th - A description of the handling of utensils not was. Ledtglich the paper towels are provided with Asian characters. For me as a "standard" German this should not be construed :-)