True wilfire 5 or the 1st implementation of the ribbon?
If the former: be prepared to post on all the "we hate ribbon" posts...
If the ladder: all your bugs are fixed.
Recently i also upgarded to creo 2.0, compared to ProE/WF 5.0 Creo have some additional user interface on ribbon.
for me Initially Ribbon interface is very hard...now it seems very easy