Be really careful using surger thread for piecing. it is only two ply and not very strong. It is meant to be used with several other threads in combination to give it the strength it needs to hold up. Consider all the time and expense you spend to make a wonderful quilt, why use a product not meant for that application.
Even though some people will say no problem there are many factors that live with that statement that need to be considered like how they are used and washed and stored, a kick around , kids quilt or an heirloom.
One of the best tips I got as a new quilter is to always try to find and use the best quality you can afford. Put that money to use in the best place.
As an example, I can't afford expensive fabric for every quilt I make. Most of them are made from scraps and old shirts from second hand stores. There is a lot of fabric in old shirts. This low cost recycled fabric allows me to buy better thread and I know my quilt will not fall apart over many years of use.