The worst part is they have tons of really great things, but rather than improving and working on getting more users they keep starting over.
I feel like at one point they were working towards an experience where you could:
* text, voice or video chat (and flip between them in any conversation at any point)
* in 1-1 or in groups
* integrate with PSTN voice and SMS (to the extent possible)
* access across several platforms (with a seamless experience if you move from one device to another midway) including native PC, web-based, and Android apps
They got like 80% of the way there -- then just gave up, and everything they are doing now is just on its own randomly wandering path with no cohesive vision.