I have all the various threads from Connecting Threads and have had no problems whatsoever. One thing about the Essential Pro as its polyester is that it does not break easily. Low lint too. As someone else mentioned though they don't have as many colors to choose from though. I use Ct's threads for most all my quilting though and like that they have lots of colors to choose from and their price is great. I tend to order when they're having a sale on their threads and keep lots on hand. If they have the same color in the their larger cone variety I tend to order it instead.