70% - why?

"The SH100 has little in the way of physical controls...the touchscreen technology is not nearly as responsive as that of a smartphone...inconsistent touch response...touchscreen is hardly a selling point....Resolution is average, contrast quite poor and the finish highly reflective, making framing in bright daylight difficult, if not impossible...shooting blind.....In terms of image quality don’t expect too much....noise is a serious problem...The SH100 is quite slow"

So, it's unusuable outdoors due to the crap screen and lack of viewfinder, unusuable indoors due to the noisy image quality, has manual controls deleted and replaced by a dodgy touchscreen, and is slow in operation.

What's the lower 70% of the review scale used for?

"...slightly cantered top plate..."

Er, did you mean "canted"?

It doesn't appear to have the necessary legs required to canter effectively.