A LabXchange trial should start with one lesson objective and the learners who will use it. Pick a relevant simulation or learning resource, complete it as a student, and check whether the activity builds the intended skill rather than merely looking engaging.
For classroom use, test access on the devices and connection students actually have, check accessibility, and decide how you will assess learning outside the activity. Save a backup lesson plan if sign-in or connectivity fails. Compare alternatives by learner outcomes and teaching effort, not by catalog size.