"[We booked a deluxe room, 1 king bed, 4 nights; first-time customers of this hotel.] Staff were universally courteous and helpful. Porters took due care loading & unloading our luggage and conveying to & from our room. Valet parking process was smooth, and a bargain for only an additional $10/night on top of the $30/night self-parking fee.
Room: tidy and well-appointed for its type. Pleased that all the lights in the main room were dimmable. If you, like us, must have complete darkness to sleep, unplug the tall rectangular light; it dims, but we never found an off switch. The automatic floor light on the far side of the bed was unexpected & appreciated. A/C worked very well.
Minor annoyance: no USB ports in the room, a standard feature nowadays in hotels of this level. The extra power outlets were difficult to locate as their dark colour was nearly invisible against the dark furniture. (FYI - turn out to be located on the under-edge of the desk’s front, and the side facing the bed for each bedside table.)
Room service was prompt; we enjoyed the food. (N.B.: we are not foodies, gourmands, or gourmets, so YMMV.) For me, the apple chicken sausage was a highlight. The portions are Texas-sized — bring along some ziplock bags to store leftovers in the in-room refrigerator. (Our room did not have a microwave oven, so consider whether a given hot dish can be enjoyed cold.)
We will happily return to the Omni Hotel Dallas whenever we attend an event at the convention center."