Tumbleweed: What are the pros and cons?

I think I can give a clear answer.

Tumbleweed works on a few Tumbleweed repos and a few openSUSE repos. For example I have these repos:

john@tumbleweed114:~> zypper lr
# | Alias                            | Name                             | Enabled | Refresh
--+----------------------------------+----------------------------------+---------+--------
1 | ChromiumTumbleweed               | ChromiumTumbleweed               | Yes     | Yes    
2 | PackmanTumbleweed                | PackmanTumbleweed                | Yes     | Yes    
3 | Tumbleweed                       | Tumbleweed                       | Yes     | Yes    
4 | Updates-for-openSUSE-11.4-11.4-0 | Updates for openSUSE 11.4 11.4-0 | Yes     | Yes    
5 | repo-non-oss                     | openSUSE-11.4-Non-Oss            | Yes     | Yes    
6 | repo-oss                         | openSUSE-11.4-Oss                | Yes     | Yes    
john@tumbleweed114:~> 

Notice the first three are Tumbleweed repos and the last three are openSUSE 11.4 repos. When 12.1 is released I will simply switch the last three (the 11.4 repos) over to the corresponding repos for 12.1 – simple. Every few days I run the command “zypper dup”. When I change the 11.4 repos to the 12.1 repos I will simply run that key command once again.
(in the absence of any other advice that might be issued by Greg K-H).

Thank you (both of you :slight_smile: ) for explanations.
It seems like it is just like I thought - no need to perform full offline update from DVD.