OneByAOL has been very helpful for us as an agency when it comes to managing our clients' accounts. The team at OBA are always quick to respond with any questions we have about account management or technical issues. They're also great people! We've had some success using onebyaol's reporting features but haven't found anything that I dislike yet. If you need help setting up your client's account then definitely give them a call. Their support staff can really walk through everything step by step so there shouldn't be much confusion along the way. Our biggest challenge was finding someone who could set up all of our clients' media buying campaigns across multiple platforms (Google Display Network, Facebook Ads Manager, etc.).