I like to use Bers for my social media posts because it allows me flexibility in what type of post or graphic i want, as well all its filters allowing you do edit your photos before posting them online! The only thing about bers which could be improved would have more options when adding graphics/photos from other websites into our own designs - but this can easily work around by using another tool such us Photoshop etc..
There's nothing really bad at present though so no complaints there either except perhaps if someone wanted an easier way out than having too much software installed onto their computer- maybe just one program? Using Berse enables easy design elements through templates provided especially useful during start up phase where we didn't know exactly how things should look yet (ie logo).