Nevertheless, this study has enabled the identification of sources of difficulties encountered by the users during the training sessions. These difficulties provide us ideas for improving the design of future virtual environment devices intended for human learning. In fact, we have shown that the lack of explanatory feedback in Simubat 4.0 Gen-2 make its use dependent on the instructor's comments specially on content errors. At the same time, the size of the physical area of use available to VR impacts the ease of using this device.