"The person who helped me was excellent. Very professional and helpful."

"Representative was very thorough and helpful. I dislike the automated system. You cannot ask directly to speak to a representative."

"I will never use Constellation again no matter the rates!!!!!"

"as a company overall good, for this issue it left me confused"

"It would be helpful if all of the options for renewal were posted on the website. I found some but not all."

"Constellation is very useful for home"

"Excellent, Excellent worker very knowledgeable Excellent phone manners !!"

"The customer service rep. was pleasant to work with. I was bothered by the fact that my renewal letter was never sent to me. I called and was told that she would request the letter to be sent out. I received a call the next day letting me know it wouldn't be mailed out for another week. Though I did appreciate the call back, I felt if Constellation wanted to keep their customers they would mail their renewal letters a little faster than that."

"I loved the people who helped me , very nice and courteous with me. I liked that they thoroughly understood what I explained and they both were able to help me on that issue."

"Setting up service was difficult because your representative did not speak or understand English as well as I would have preferred."

"We loved it for several years , but now the price has been going up and up to the point that it is more expensive than Ameren ."

"This was not a phone conversation. I spoke with the rep through live chat. He was very helpful and knowledgable."

"Getting ahold of a representative was quick and easy. Very pleased with my problem being resolved in a timely manner."

"Hire a better IT shop. I work in IT and in fact energy regulation so I know the industry. Throughout the 2 years Constellation has been providing me service there have been numerous times I've gotten wrong bills, upside down bills, websites that don't completely render, websites that i am 99.9% sure have security vulnerabilities, mailers telling customers to go to a production site to renew which dns resolves to an obvious test domain(most likely a failure of change control). It's bad a systemically bad. I would bet $20 you will send me a breach notice one day."

"The Rep I spoke with Emma’s very knowledgeable and caring, spoke slow and loud and clear so that I could hear what he was explaining to me. Overall a great experience and he resolved my issue."