East Coast Chip Keys

I needed a spare key for my car and East Coast Chip Keys was open on Saturday so I decided to give them a shot. I live in Arlington where their store is. I wish that I hadn't. This was my first experience with a key with a chip. This locksmith is both a lousy locksmith and a lousy communicator. He made the new key for me but then told me that only my new copy and my factory original would work in my car. He had not mentioned that the modification had to be applied to all factory original keys. I then had to call my wife and have her come to the shop so that he could apply his change to her factory original key. At that point I thought I thought I was all set. I then drove to Belmont to run an errand. I locked the car with the lock button inside the car. When I finished my errand I found that my new key would not unlock my car. Fortunately my wife was carrying her factory original key which would unlock the car. I called the locksmith and drove back to his shop. He then spent about 15 minutes diagnosing and fixing the problem with my new key. He acted as if this problem was business as usual, although he did apologize. Over the next couple of weeks I noticed that my new copy would trigger the car alarm when I unlocked the car. This happened several times in the weeks just after I had the copy made. Initially I thought that the key was simply defective. I went back to the shop and discussed the problem. Long story short, the new key worked but I had to click it twice in the door lock: once to open the door and once to disable the alarm. This behavior is different from how the factory original keys work. The locksmith had not explained this difference in behavior to me.