We really liked the Omni Rosen, the main reason being is that is was usually full of conference delegates who were working at the convention centre next door, hence, the pool was really quiet during the day time.
The rooms are pretty standard, although they were looking a little "tired" the last time we stayed there. It could probably use a facelift in the near future.
They have a great 24 hour deli in the lobby which we used all the time. Restaurants were OK, but overpriced compared to other stuff on I-Drive, but they mainly catered to the business traveller.
One downside is the walk from the car park at the rear, to the lifts to the rooms. There is a HUGE conference facility at the back of the hotel, and it's a long walk, especially with two young kids after a day at the parks.
Overall, I probably wouldn't go back again, mainly because there are some newer properties in the area that I would like to try out, namely the Ritz Carlton and the new JW Marriot.
For the rate you quoted though, I think it's a good deal.