There were 2 reasons I upgraded to V5 early. One was eprescribing, which has been good and has worked well.
The second is the search function fix, which allows me to sort patients.
I did only play with it for a week, but I happened to be on vacation over Christmas and spent a fair amount of time getting familiar with it. At that point I was comfortable enough to put it in one of the offices.
I used a program called Revo, which I had used before. It is free, very small and very easy and straight forward. I can't compare it to Your Uninstaller, since I have not used that.
I won't go into great details, but on several computers, V5 did not fully remove V4. The uninstallers were removed. I know I could have probably used V4.073 installer, but with all the issues that I was having, I thought it prudent to do a more through uninstall.
I am willing to play with Beta's because I want to see and contribute to the development of AC. If I can make it more bulletproof and tailored to my needs I will run with it.
The Beta's are more stable than V1.025 and I lived with that for a while. I also have better back up.