[TYPO3-english] Caching Framework questions

[Victor Livakovsky]

Hi, list.

I've faced a problem, when I need to reuse results of resource-eating 
processing multiple times with multiple page-loads.
Since I don’t want to reinvent the wheel, I decided to try caching framework 
possibilities.

http://wiki.typo3.org/Caching_framework#How_to_use_the_caching_framework_in_extensions
describes the process of usage really good, but here is another article:
http://wiki.typo3.org/Cache#Example_for_using_cache_for_own_Extensions
and it looks simpler, than first one.

As far, as I see, the benefits of first method are:
- you can configure different caching backend and frontend for your own 
extension, non-depending on 'cache_hash' configuration;
- you can use tagging and later clear caches by tags.

Are there any other benefits?
Or even, what is more important: is it bad to use system's 'cache_hash' 
instead of own one?