I'm using the Hasselblad attachment now and I really like it. The photos have excellent depth of field and the color saturation is amazing. However, it is not good for real close work. If, like me, you are wanting to shoot scenes as they pop up as you move around, this might be worth trying. I also have the projector attachment so I can show friends what I did. This is a fun way to get quality photos on the run.
I use a Hasselblad zoom on my Moto Z. Great pix, lots of depth, not useful for close-ups. great color saturation.