I will be spending 8 nights at the Bristol in Vienna in april. I just got my AmEx Plat card wich upped me to gold (still waiting for marriott status match). Anyway, once Marriott matches to gold, I will then want to do a Platinum challenge with Marriott. That means 9 stays within a 90-day period. I've already got three stays accounted for in the next 3 months. Will this work to get Marriott and Starwood Platinum? Also, is it worth it for me to spend on six additional stays with Marriott in order to get platinum Starwood. What I mean is, what are the chances of me being upgraded to a suite at the Bristol being a Starwood Platinum? Thank you.

So, got to Bristol and the 1st thing they say to me was"Would the Penthouse suite be acceptable for your stay"..

Wow, big beautiful room with rooftop patio and great view of the opera house... Free awesome breakfast everyday for 8 days for 2. So the $400 i spent on mattress runs got me almost $4000 in upgrade and breakfast. Very happy