I've been using an electric toothbrush for years, and replacement heads from big brands get expensive fast, so I decided to give these a try. Honestly, they worked better than I expected. They snap on easily and fit securely without any wobbling.
The bristles feel soft enough for my gums but still clean really well. After brushing, my teeth feel just as clean as with the more expensive brand heads I used before. I've been using them for a few weeks now and haven't noticed shedding or shape issues so far.
What I like most is the quantity. One pack lasts a long time, so I don't have to keep reordering replacements. For everyday use, these do exactly what I need at a much better price, and I'll probably buy them again.