Certain programs that I use are not in the 'standard' repository which means that I must install them (and their individual repositories) separately. This generally does not cause conflicts but it does cause some 'head-scratching' when choices must be made during updating. But, all in all, GeckoLinux is by far my favorite of the rolling release type of GNU/Linux operating system.
This is what's needed for an (almost) perfect Linux install. Has a lot of extra drivers for instance Broadcom and printer drivers that so often is making problems. This is one of the best if not THE best one to try Linux without (drivers) issues :)