Keri
I rented an apartment from Sonar for 5 years. The lease agreement included the costs for water, gas and TV. Multiple times they tried to find out information about my electricity consumption in order to adjust the usage. The clearest answer I received was that I had stayed within my limit of €150 that month, the amount assigned in my contract to gas, TV, etc. Shortly after I received a bill of €2000 that had to be paid within 14 days, otherwise... With an 'extra service costs' of €350 from Sonar you would even expect a greater effort or at least better communication to be able to determine more accurately how the electricity consumption could be adjusted. Upon moving out, the full deposit was withheld again, this time for electricity costs (and cleaning). No official invoice (i.e. no invoice number or letterhead from the energy supplier, etc.), only a typed letter from Sonar stating that the deposit was withheld and the additional amount I had to pay. Regarding cleaning, I had even insisted that one of the staff members would come by for an inspection to see what normal wear and tear was and what I could still do at the last minute to save on cleaning costs. This happened after some resistance had arisen via emails about carrying out the inspection together with me. Key points from my experience: - Fast and easy rental agreement. - The (then) €350 in extra service costs are not worth the money. - Although short-term renters may have more positive experiences, long-term renters should be cautious. - Although customer service is somewhat close to what is legally required, it seems like a rarity.