Swapped these in last night and the fit is perfect — they click right into place without any wiggle, which my last ones never did. Plaque’s noticeably gone from my back molars after just a few days, so I’m sticking with these.
Stella★★★★★
The bristles feel firmer than my old generic replacements, and the snap-on fit is snug enough that I don't worry about it rattling loose mid-brush. Plaque build-up on my molars has noticeably decreased after two weeks of use.
Victoria★★★★★
The snap-on mechanism is so satisfying—click and it's locked in, no fiddling. I've been using these for a couple weeks and the bristles feel firmer than my old heads, which is exactly what I wanted for a deeper clean.