I stayed here for one night using marriott reward points I had collected. It's by far the nicest Courtyard I've ever stayed at. I had a room with a king size bed, and it was huge. The kitchenette area was very useful and the bathroom had two showers in it, one was a bathtub/shower and the other was a standalone shower.
The decor is very modern and crisp. The bed was so comfortable and I really wanted to stay for a few more nights.
We ate breakfast at the Bistro by the lobby, (which is basically a glorified Starbucks, so be prepared for pricey meals). It opens at 6 am, perfect if you have to be somewhere early. They offer basic breakfast meals, I had a Breakfast sandwich that was quite good.
The staff were very friendly and quite accomodating for our very late check-in and also allowed us a late-checkout.
The complimentary underground parking was very nice as well.
I would definitely stay here again on my next trip to Ottawa.