Yes, IMO. Modular is advanced, but it's the purest, most fundamental way of synthesizing sound. Many people complain that they never see modular artists make normal subtractive patches (the typical VCO > VCF > VCA, modulated with ADSR envelope generators), but the truth is that you can make subtractive patches all day with modulars if you want, but they only comprise about 0.0001% of the sonic design space, so poeple usually explore other patches instead. So yes, you can use the modular format to learn synthesis and build easy or hard patches all alike. VCV Rack simulates at a voltage level, so you can "debug" patches with the Fundamental Scope if you're confused about exactly what a signal (CV or audio) is really doing.