Well, that's a pretty tough question to answer.
There are two primary issues that have been discussed. One seems to have been resolved - the headphone audio problem. The other is when the scanner is connected to a computer with the USB cable, it wants to jump from Serial Port to Mass Storage Mode.
If you will do things requiring the scanner to be in Serial Port mode, that can be problematic. Whether this is a hardware issue or firmware issue hasn't been said (Uniden hasn't even said they are looking into this matter - there was supposedly a firmware update to deal with that, but I and others still experience the problem).
The Siren App hasn't been finalized. There will be some updates needed to the WIFI dongle whenever that comes out as I understand. And I imagine with the Siren App being something new, there are bound to be bugs. I'm not being negative - such things are facts of life.
However, I believe Uniden is a responsive company and will address issues, they may not do so as quickly as some folks would like, but eventually they do.
These days scanners are like mini-computers. It seems that there are always some patches to operating systems or something "new and exciting" on the horizon. Waiting until the last thing falls into place, might be lengthy.