I work in downtown Phoenix and have been going to Marston's Cafe on and off since 2006. The majority of experience was when the hotel was still the Wyndam. I was actually introduced to the restaurant by a co-worker who had been going there since the mid-1980's.
The main draw for lunch is their buffet. Selection was rotates and more often than not, I would get the buffet for lunch. Occasionally I'd order off the menu as well. Recently, the hotel changed ownership from the Wyndam to the Renaissance.
Sometimes change is good, but the new changes have been dreadful. The buffet price has risen by $2. The plates, silverware and glasses have been swapped out for trendy designs and are not necessarily functional. I see some familiar faces among the staff and they are the only saving grace (Rhonda & Chef Sam are standouts).
Overall the restaurant is on the decline because the new ownership went against the old adage of, "If it ain't broke, don't fix it." The few times I have been in recently it has been noticeably dead. I sure hope they figure it out as Marston's was one of those restaurants I visit on a weekly basis. I am not sure I can justify the added expense when the quality has not only stayed the same but actually gotten worse.