I still don't like the comps compared to the old days when you just duked it out with a host at the end of the stay. If you spend anything at all at the hotels, the 25 points/$1 spend makes it much much easier to advance levels. All tier points did indeed go 'poof' on October 1, 2012.
Here's a few answers to the questions I saw in prior posts that appeared unanswered as well as my random comments on a few MLife pertinent topics: This is my first trip since the October 1, 2012, program changes. Just finished up a trip to LAS and stayed at the MGM Grand.