I inherited a bunch of Atlas snap-switches from my brother, so I started using them as well. They're "okay", but I use Peco insulfrogs exclusively now. A few more bucks, but they look and work significantly better IMHO.
The exit-curve is also much more gentle than the Atlas snap-switches. If I remember correctly, the exit curve on the snaps matches up with an 18" curve, while the Peco minimum (small-radius turnout) is a 24" radius (medium = 36; large = 60). Interestingly, it looks like they're considered a #4.5 frog.
I wanna switch to a smaller rail for my diorama, as it's supposed to be a shortline, but I have yet to do the research to see if Atlas and Peco match on another code (I use Atlas flex track and some sectional track with the Peco turnouts on the current layout, all code 100).