  In recent years, an increasing number of Human-Robot Interaction (HRI)
approaches have been implemented and evaluated in Virtual Reality (VR), as it
allows to speed-up design iterations and makes it safer for the final user to
evaluate and master the HRI primitives. However, identifying the most suitable
VR experience is not straightforward. In this work, we evaluate how, in a smart
agriculture scenario, immersive and non-immersive VR are perceived by users
with respect to a speech act understanding task. In particular, we collect
opinions and suggestions from the 81 participants involved in both experiments
to highlight the strengths and weaknesses of these different experiences.
