I would say its a very good idea. So much so, that I did it myself. But you shouldn’t see it as an IR ‘Lite’ as it is really designed to allow you to get yourself out of trouble and find a suitable landing site using appropriate navigation aids. Do not expect the IMC to allow you to land in fog! The minima is much higher than IR rated pilots for very good reason. I found it useful in terms of discipline and confidence: nailing altitudes and headings and, of course getting used to heads down instrument flying and associated radio calls. The hope was to enable me to extend my hours building into the cruddy winter months. I really have to start studying though....