I have a commercial design built around an Arduino 2560. People say the Arduino is more of a hobbyist device but what does that mean? Does it mean that its not reliable? Will it break down in use? Should I change out the microcontroller to a Microchip brand. Will that be more reliable? The both are rated from -40 degrees C to +85 degrees C. Is there a reason not to use it in a commercial design?
I do find the Arduino a lot easier to program and it does everything I want it to do.
Both Microchip (PIC) and Atmel (ATmega) are serious (professional) MCU's and are also both used by hobbyists. The difference is the PIC never managed to really deliver a cheap, consistent hobby platform, unlike the ATmega that was adopted by the Arduino team.