Mastering ROS for Robotics Programming - Second Edition

Why some do not prefer ROS for robots

Here are some of the reasons why some people do not prefer ROS for their robotic projects:

• Difficulty in learning: ROS can be difficult to learn. It has a steep learning curve and developers should become familiar with many new concepts to get benefits from the ROS framework. 
• Difficulties in starting with simulation: The main simulator in ROS is Gazebo. Even though Gazebo works well, to get started with Gazebo is not an easy task. The simulator has no inbuilt features to program. Complete simulation is done only through coding in ROS. When we compare Gazebo with other simulators, such as V-REP and Webots, they have inbuilt functionalities to prototype and program the robot. They also have a rich GUI ...