Can I test the Robot Vacuum and Keep it with positve feedbak to the.public

You can BUY IT and test it as well as give them positive feedback. I'm sure they'd love to hear that. Of course, if you try to return it that positive feedback will work against you.

Don't think so

So you want a free robot vacuum in exchange for a positive review? Nope. Ain't gonna happen.

Walmart isn't consumer opinion center. They don't do that. At all.

I really dont know

I've never heard of them doing this.