simdll Unfortunately, yes. The font of few things was too small (the PIN digits are ridiculously small and few fonts in notifications. This fixed only after reboot). The phone feels noticeably hotter than before, animations are choppier and less pleasant, and app icons in notifications are now colored, which makes the interface look less consistent. In general interface looks and feels worse than it was on OS 4.1. So yes, don’t hurry with this decision.