Luckily I haven't experienced any of the WiFi issues people have with 10.10.*, but the last update was still toxic, for a different reason: I had to disable all third party kexts or I would get kernel panics every 10 minutes or so. Incredibly frustrating.
PSA: If you use VPN software, Smoothmouse, or Hamachi, consider not updating to 10.10.3.
PSA: If you use VPN software, Smoothmouse, or Hamachi, consider not updating to 10.10.3.