We actually had a couple of packs of those bibs! I liked them... BUT if you get them, do so at BRU. Way cheaper than Amazon, like maybe half the price, and they often have buy 1, get 1 deals.
That said, we needed them because DD was a ridiculous barfer. Like, after every feeding. We tried burping for what seemed like forever and never got anything until she barfed on her own. We always had burp cloths within reach, but sometimes it is a sneak attack!
THEN, around 3 months, she turned into a drool factory. That continued until she got her first tooth around 8 months.
These bibs are thick and absorbent, yes, but once they soak up a lot, they get wet all the way through and LO might end up with a damp shirt anyway. Like PPs said, these should not be used for solids because they will get soaked. We had Bumkins for that. As barf or drool catchers, they work.
Just my .02!