The only dumb thing I did with the upgrade was not to spend the extra bucks on Win2000 Pro instead of Me.
I am running it on a Gateway Solo 9300 XLC top end notebook with 15.7" TFT screen a brilliant piece of gear.
Having said that the ugrade features are pretty useful for my work and have not had any problems so far including routinely plugging into a Unix server network and running some heavy duty applications.
On another note you gotta use the Computer Associates EZ Armor firewall/virus stuff it's fantastic and stopped all the stuff thats going around including me being able to tell our IT guy that his favourite stuff had missed the latest virii and that his whole network system was about to go down. My stuff had picked it the moment it connected.
"You leave the big kids stuff to us big kids" was the tenor of the reply from our now newly ex IT guy after it went down.