It absolutely is, it has been a ton of help to be honest. We have had multiple instructors over the last year and at first we only listened to the traffic and the instructor would pause and talk about what is going on and why a controller did a certain thing. Then we got a new instructor and they would play one sector from each area we had a trainee for and they would question us about LOA/SOP shit as well as the abutting area trainees if the info would apply.
Only just now realizing how very wide the gap is between facilities in how much virtual training has been attempted in the last year.