I like that it's easy for me as an admin user (and not sales rep)to log into my account from anywhere at anytime via our mobile app or web browser! It also has some great features such as being able to send emails directly through your CRM system which saves you time when sending out email campaigns etc..
There are no downsides really but maybe more integrations would be nice? We have been using this product since last year now so there isn't much new information i can give about its useability/features compared before we started working together though their support staff were very helpful upon request during onboarding process too!!