Review on High-Quality Replacement Parts for iRobot Roomba i3-i8+/Plus & E5-E7 Vacuum Cleaner - Multi-Surface Rubber Brushes, HEPA Filters, and Side Brushes - 1 Set by Darius Early

Worked well and I think they make less noise when in use. Still makes a lot of noise compared to the original. I still think it was worth the price. Not 100% sure it will get better but I just turned on the vacuum and it wasn't as loud as the first few times. The brushes rattled, but I know the originals can do the same the first few times. Although there is definitely a difference! Update: They don't make any noise on the carpet I have them on right now. The hard ground was like that all July and it was pretty noisy every day. Now it's lying on the carpet and making a very faint noise. I can sleep through it. I've been using the brushes for 2 months now. While not OEM quality, they don't fall apart as some reviews have shown. Honestly happy with the purchase.