We've been toying with the idea of adding a business listing onto Google to add opening hours and secure reviews, etc.
However, I've always been a little hesitant about doing so. Basically, we run a company providing services to people throughout the UK (and often globally). Although we do have an office address in London, I didn't want to add a listing, and then make Google think we're a local business only. I then thought that by doing this, we could drop down in the SERPs in non-London locations.
Has anyone with a national / international businesses added a Google Local Listing? If so, did you notice it affecting your SEO efforts?