I use the multipurpose paper for work and it works great. The staples brand is as good as any other that they sell and typically a little more inexpensive. I normally purchase cases of paper from staples and have it delivered but lately I've been going into the store to buy it by the ream. The reason for the in store purchases is they have a great "clearance" section where I often buy other office supplies that I need for my home office. I have been a huge fan of Staples since they moved into our community.
I like buying my paper by the case as it lasts a long time and you never run out and have to make a trip to the store for more Staples paper is white and works with the printer and stores nicely in the box until needed and doesn't yellow or become damaged like single 500 sheets laying around. Staples also has great deals on the paper by the case. Staples is a great place to do business as they are friendly and if something is wrong they will correct it quickly.