Yes, also got one and am very glad to have it.
Two main reasons, I think:
i. As stated, it gives you options, and,
ii. the training gives one a feel for more accurate flying than is necessarily taught for vanilla PPL - and there is nothing, of course, to stop one at any stage from applying IR standards of accuracy - just that, have trained for an IMCR one has started to have a feeling for that desired accuracy.
Well worth the effort.