The customer service is excellent, they have an amazing team of people dedicated solely towards helping our business grow through their services! Their rates are fair for what you get - I can't say enough about how great this has been so far as we've never had any issues or complaints from anyone using them even though there's almost 30k customers in just over 3 months since launch!! There really isn’t anything bad at all (aside possibly having some more features/customization options).
We use Goshare primarily because it allows us access into areas where other companies don’t operate such as restaurants & hotels within malls etc., but also helps keep costs down by not needing multiple employees driving around town delivering packages during peak hours when most carriers would be doing same thing anyway.