The best thing about backendless is that it has all the features needed to make our app work smoothly, I like how easy it was for us to get started with backendless because we were able to use their tutorial videos which helped us understand everything very quickly.
There are some things in backendless that need improvement such as there isn't much documentation available online or from customer support but overall i'm satisfied with this product so far. We have been using backendless since last year now and haven't had any issues yet. Our application works flawlessly without crashing at all.