Q is fun and the standard prime lens is engineered for low cost than quality, e.g. the 06 zoom has much better CA control. If you plan to buy more than one lens with the Q and assuming you want to get the best pictures for a given budget, then Q is not a good choice because with the same budget there are lots of other options. If you stick to the standard prime and go minimalist (and don't try to maximise the picture quality for a given budget),m then Q is very photographer friendly (except for the output from the standard prime!). Personally I really hope that the wider prime will be significantly better than the standard prime or else it will be a disappointment.