It's easy to use, it is very intuitive, has lots of different features that can be used in conjunction with one another for your business needs, it does not cost as much as other services out there. Nothing so far! I have only been using this product for about 3 weeks now but everything seems straight forward enough. The customer service at Oblong are fantastic and they respond quickly to any questions you may have. If you need an all round solution for your office then mezzanine could well fit the bill. We're solving some issues around remote working which was causing us problems before we found mezzanine.