I don't have any personal opinions nor am I a pilot, but here are some quotes from Business & Commercial Aviation April 2004:
"Ideally, the XLS would have had a fourth DU1080, dedicated to EICAS functions, and dual MCDUs with radio tuning functions. This configuration would have enabled Cessna to re-organize the cockpit to the latest ergonomic standards, in B/CA's opinion. Such large-scale changes, however, also would have considerably raised the nonrecurring engineering cost and development time, thus increasing the selling price to customers.
"Operators who complained about the Excel's two-position horizontal stabilizer, single-wheel main landing gear that's proned to hydroplaning and thrust reverser tail buffet will find the XLS offers no changes to these systems."
Unless you buy a position for premium, be prepared to wait a long time for a new XLS, lead times might be into 2007.
Just trying to help.