New kitchens can be great if the main drain lines and water lines are installed using the better material, copper or pex instead of CPVC for the water lines and schedule 40 PVC for the drain lines instead of cast iron. Appliances which have a great energy efficentcy, warrenty and parts avaiable for replacement.  Do not buy unique faucets or appliances from Pop up company's who will be out of business in a few years and no parts are avaialble. 

Water filtered for consumption is great, just becareful and do not overfilter the water by removing the chlorine and allowing bacteria to grow in your pipes, expansion tanks and other areas where bacteria can grow.  A filter to take out the particles which the older city pipes add to the water once it leaves the treatment plant and during delivery of the water to your building, the older steel pipes drop metal particles inside from the rust on the pipes.