I've been buying Staples brand 110 lb cardstock for 15+ years and I typically purchase anywhere from 8-10 reams in a year. I was always happy with the quality - until recently when they changed their packaging (not a big deal) and also changed the quality. The cardstock even though it says 110 lb isn't the same thickness as the previous stock (I had some left and compared them). It also doesn't fold and score well. I use this to make folded cards so it's important to me that it folds well. It actually cracks at the fold now so anything that's printed on the stock before it's folded winds up being messed up. Really unhappy with the new stock. Now I'll have to go find an alternative.
I used this for a directory which will face lots of use. The 110 lb paper has nice texture & weight that will hold up. I would use it again for other projects.