Stayed in Detroit the last two weeks, one week at the Marriott Ren Cen, one week at the Courtyard. Here's my impressions...

Marriott Ren Cen: Nice looking hotel - much improved from the Westin days. Rooms are pretty standard Marriott fare - no flat screen TVs but nice bedding.

The lounge was decent - good views across the river and the food was good. I had no service problems, and found both the front desk staff and the lobby concierge (who helped me with a cab across the river to Windsor airport) very friendly and helpful.

I like the airline check in machines at the front desk.

I was not pleased with the internet - $10.95 for wireless in the lobby / lounge, or $12.95 for wired in your room (including wireless in lobby and lounge). Seriously?

Courtyard Detroit Downtown: They didn't recognize me as a platnium when I checked in, and didn't give me a gift (which they did for a co-worker), but whatever.

Roomwise, It's a Courtyard. Bedding was okay, but a bit scratchy. The rooms are otherwise nice and sizable and the bathrooms are HUGE with very nice showers.

The gym and spa (which I think is shared with the Millender Center Apartments) is huge, and wasn't very busy when I was in there. Lots of machines, free weights, an aerobics rooms, sauna, pool, tennis courts and a running track. The best gym I think I have ever seen attached to a hotel.

Location is good for the Ren Cen, with attached walkway to the building.

Free internet, always a plus (especially seeing as I get no internet access at my client, and thus have a LOT of emails to catch up on at the end of the day. *sigh* I might need to get a blackberry soon - ugh).

Overall, the Courtyard seems a better value, even with having to pony up dough for breakfast.

Cheers,
Greg