I've been planning Ms JRS & my November Europe trip for the last month or so. Trying to accomodate DL award availability with MR availability took a little work but in the end I was able to snag Standard awards for 3 nights @ the Munich-Ren, 4 nights @ the Vienna Ren, 5 nights @ the Zurich Ren and 7 nights @ the Paris Champs (my favorite Marriott property). All this was done via the website and each reservation, except Paris, changed at least 3 times.
I know other people have legitimate issues with Marriott and the website but I just wanted to acknowledge that for me, everything worked out perfectly.
"Thank You Marriott"