Well i find good things with UNA and good things with the core of Phpfox for example. Social Engine i think is moving toward a cloud based version only and planned to ditch the old php self hosted version. I would say that SE and UNA at two very different stages of their path. The only thing with UNA is that they are at an early stage and we feel lots of security features, analitycs, modules of all sorts as well as themes variety are missing yet....UNA needs more time, time always time.