Hello, I am a Bluemix certified developer and have a lot of experience developing applications using IBM Watson Api, including personality insights.
The time took here is not related to Watson api, it s actually easy to use the api. The greatest challenge here is create a google spreadsheet button and action inside the spreadsheet.
I can develop the script it will take about 15-20 hours, but I am not going to work 8 hours a day in it. There are alternatives such as developing a website.
I need you to have a ibm Id and a bluemix account to setup the environment and describe the results you will want to be shown, such factor, facets that make sense or all.
Waiting anxiously for response.