All keyboards come with a one-year warranty. The difference between the blue mechanical switches is: 60 grams of resistance (pressures are tangible) and the button sound is loud. Brown: 55g resistance (light presses) and the button sound is low. Red: 45 grams of resistance (light pressures) and the button sound is low. Mechanical switches often come with close response speeds, and your choice depends on what you prefer.
