Ok, once installation is done.
4/5
Installation was a bit of a pain as the securing brackets don't work particually well. The insulating box that covers the terminal also does not open particually easy. I ended up braking one of the hinges and clips attempting to gain access.
Due to the brackets I was unable to apply enough force to pull the top fully onto the worktop surface. The was resolved by a thin application of silicon, which I was trying to avoid.
It took around an hour to install including removing and refitting the oven I have bellow it to gain access to the bottom of the hobs.
Now it's installed, the operation is as expected. Cleaning is easy.
Christopher