Duh, I said I'd post and I forgot! Sorry...
No, we didn't stay there so I don't think I will be much help anyway. But, it looked nice from the outside and the location is great (lots of restaurants within walking distance, etc)
We ended up staying at the Embassy Suites (the new one) which is about 1 city clock closer to DL than Mariott Suites. Any question about the Embassy I would be glad to answer. We loved it and I am not in a hurry to return to the DL hotels unless there is a real bargain to be had. The rooms were large, the cooked to order breakfast plus the evening drinks & snacks were great. I was worried about the shuttle because I don't like to have to wait, but it was on time every time. The longest it took us was 7 minutes each way. We did see the Marriott shuttle as well and it was always running too. I think that their shuttle is the same as Embassy's shuttle in that they share it w/the 3-4 hotels that are in their parking lot.
The lobby at the Embassy was very nice - there was even a wedding there (right in the lobby) on the Sunday we were there.