A basic PPL is almost useless, and is pretty unsafe in reality, without a capability to (a) navigate using radio nav (GPS/VOR/DME) and (b) control an aircraft in IMC.
(a) is useful anyway and is fully compatible with VFR flight.
The ability to do (b) legally is a bonus, but safety is vastly improved even if you just have the capability.
I would thus recommend everybody to do the IMCR.
Just make sure you get an instructor who flies for real.