The positive thing I have with all the VCM lenses: I'm not feeling tempted at all to buy any of them, so saving my money. That's due to my special interest in night photography, but any niche has it's rights (and I have no problems with all the other photographers who are happy about these new lenses).
In any way: A 'slightly' wider selection of RF lenses would be nice (as I'm starting to feel like a Mac user ...).