I like how simple it was to set up my account, as well as manage calls with coworkers at different locations around our office.
It can take days or weeks for an issue you report/ask about be resolved (especially if its not related directly to product). A lot of times we have issues which are out-of-scope from their support forums; hence end users having difficulties figuring things out themselves without contacting us first - this makes life difficult when dealing with larger companies where customer success teams are spread far apart geographically compared to smaller shops who may only need 1 person supporting them across multiple regions / offices etc.. We use yodle internally amongst ourselves so were able solve problems within groups quickly by using internal slack channels instead of getting bogged down waiting for someone else's email response (which never comes).