problems you ask?
Let me first of all say that i am not a business user of Ubuntu and i would really like to be a fan of Ubuntu but below is my experimental experience of Maverick and Natty Narwahl.
I should also say that i have built both releases on the same old Siemens Amilo laptop which runs a Pentium 4 chip clocked at 2.8ghz and not a lot of memory. However, it runs well and boots quickly.
I wanted to build a simple jukebox using the default player Rhythmbox and get the wireless card working so that i could load all my cd's and automatically find the cd titles from CDDB over the wireless lan.
My wireless driver is b43legacy from Broadcom and i know that they do not exactly make it easy for users to use their chips under Linux. But in my case it turned out not to be a driver problem but a utility called RFKILL which was not fixed until i think 2.6.38 of the kernel. This kernel, last time i looked is not even the latest kernel that ships with Ubuntu. Why not? No idea!
It took me days and a lot of searching and patch loading and editing to find this out. Now it works great with the new kernel.
Rythmbox, also worked well for a few hours then suddenly stopped finding CD titles from MusicBrainz, a CDDB alternative.
I should also say that i save the cd's as flac files, just in case someone says ahh but!
So what to do,,,download Banshee and try that......great worked well for some time then it too developed a problem where it would not write the titles correctly into the menu frames.
Then another problem surfaced where the cd ripper, i tried several including soundjuicer, would take an age to rip a cd. Up to 40 minutes in some cases. (Trying also a cd that before ripped in about 7 minutes)
So you trawl the forums again looking for explanations and find you are not alone and in Banshees case, discover that many of your problems are allegedly fixed in version 2.1 which was supposed to be released on the 13th July. Where is it?
In summary, Ubuntu has more bugs than a tramps underpants and while it looks good and even feels good i can believe the first commentars suggestion that business should not go near it.