Our new house had a kitchen and full bath upstairs. We ripped out the kitchen. It was part of a new addition to the home and a dedicated 40 gallon electric hot water tank was installed. Our electric bill since we don’t have gas was 450 bucks last month. Plus the tank is 16 years old. Would replacing with a tankless save money in the long run? I’ve heard horror stories about tankless….temp fluctuations, not hot enough, maintenance etc. Any have experience with these?