As long as any and all conflicts of interest are fully disclosed. "I think Product X is really great. And BTW, I work for the company that makes it". Or would there be an issue with getting sued, if you said "Don't use (brand P, you know who) stab lok breakers, they sometimes don't trip". And things may get awkward if someone reviews a product that is advertised on the right side panel of this web site forum.
