Here are a few things off the top:
- horrible optimization
- video calls will easily bloat 1-3gb of ram
- buggy, things that should work sometimes don't
- e.g. sometimes you click to write... you get a spinner, wait 10 seconds
- poor ux. I have been using it for 4+ years at work, still have trouble finding things
- yeah, all things in one interface
These are opinions. People can have different. To me, its just a slow and difficult to navigate mess that doesn't know what it wants to be.
