The sheer beauty the product is makes it most usable with the best features and more being added every day.
It has many features that are coming up. So it can improve by continuously delivering what they have planned. It's great.
The platform is technically complex to build but for the end users, it's so simple with every feature that's most wanted to build a community. It's better than facebook, linked-in or any other platform that tries their hand at being a community driven platform. And it's far from perfect and yet it's better than all others. Imagine how awesome it will be once the team develops all the features they've been working on.