Quote from T-4-2:
"In the hands of accomplished computer users, registry cleaner could be helpful.
In the hands of novice computer users, registry cleaner is a time bomb."
The above nails it on the head. And this is true no matter which registry cleaner you choose to use.
Registry cleaners are powerful, potentially damaging tools in the hands of unenlightened Windows users.
My advice?
If you don't have a thorough knowledge of the Windows Registry, stay away from such utilities; the benefits don't warrant the risk. And I don't believe there is any noticeable speed boost, which I can only presume is your goal.
If you do have a thorough knowledge of the Windows Registry, then you still don't need a Registry Cleaning Utility as you will already know what to do- and not do.
I see these utilities as no more than marketing hype. They purport to have the capability to invigorate your Windows-based Computer, when ultimately they only provide a great opportunity for disaster.
"If it ain't broke, don't fix it."
Hope this helps,