Friendly, professional and honest.
I recently used Delta Electric, after finding them through the Better Business Bureau, where they had a good rating. I brought a few electrical contractors out to give quotes, and Delta had the best prices. They proved their worth, too, in that they gave me some really good suggestions that I ended up implementing.
I was having my kitchen remodeled, and needed and electrician to install the circuits for the new appliances, as well as some recessed lighting. Delta were really good. I had no problems with their work, and as I mentioned, they had some great ideas. They were also very nice people, and I felt that they really wanted to please me.
Whenever having electrical work done, always use a licensed contractor. I had an awful experience with an unlicensed electrician in the past, so I made sure that Delta checked out before hiring them. They really know what they are doing, and were very professional throughout. I would definitely use them again.