Trellus is praised for its real-time coaching and auto-dialing features, which streamline cold calling for sales professionals. Users appreciate the AI's ability to provide real-time feedback and automate post-call tasks, enhancing productivity and skill development. The tool is particularly beneficial for SDRs, with some users noting significant improvements in their cold calling skills and meeting bookings. However, there are concerns about its focus on enterprise-level integrations, which some users find limiting. Overall, Trellus is seen as an innovative tool for sales teams.