This is not necessarily a negative, per se, but something to be aware of. MS (member services) is only open during normal business hours. You cannot book online or check availability online, etc. You need to call and speak with someone during their scheduled time. I only mention this b/c you will often see threads on this board that state, "Help! Have a crisis and MS is closed till Monday!"
Now that I look at this, the fact that I can't reach MS 24/7 is my biggest negative?!?! LOL...things must be pretty good if this is all I can come up with! I will agree with the previous poster, though, the increased points for Fri. and Sat. are my biggest "complaint." But I was well aware of how the system worked before buying in.