Easy to inflate (we used a bike pump and didn’t go the helium route since they came with glue dots). The glue dots were easy to use and didn’t remove any paint when we stuck them to the walls. The HAPPY BIRTHDAY letters looked weird, but after inflating they looked awesome. Just a tip- we used a thin bike pump thing, but you can also use a straw to poke past the seal and inflate (seriously, I love that they have a self-healing seal).The confetti filled ones, DEFINITELY USE A PUMP. You do not want to get the confetti stuck in your mouth. We had a few confetti ones pop (but it’s because we should have inflated them less, that’s on us) and the confetti is large enough that we could quickly pick it up by hand (or use the vacuum). Great last-minute purchase and colors were perfect!