Well, I'll answer my own question. I have the new Uniden BCD536HP.
I loaded the entire TACN database and some of my local stuff.
1. Ease of downloading was easy and fast
2. Sound quality is much better then previous models.
3. Reception was really surprising. I have heard a lot of sites that I hadn't heard before, such as Memphis HP and snow crews west of Crossville. I live in the Knoxville area
4. Was able to amend and change settings easily with Sentinel.
Only complaint so far is lack of programs such as Freesan.0, Arc and Proscan. I like the ability to log and have a virtual control screen.
Just my observations. Enjoy the one day of warm weather.