My friend and I were at the Lumen for three nights visiting another friend who lives in Dallas. We chose the Lumen because of the Kimpton name. What a great hotel! We loved being warmly greeted by the reception staff each time we entered the lobby, and were delighted with the smiles and attentiveness of the front entrance valets who were ready and waiting to open doors and wish us a great day. The room itself was spacious, quiet, and nicely decorated, and breakfast in The Front Room restaurant was very tasty, reasonably priced and most enjoyable in a lovely setting. The only thing I missed was an in-room coffee/tea maker, as I like a hot cup of tea late evening and would prefer just to boil water there than order room service for it. There was coffee/tea in the lobby in the morning, though. Overall, three nights, no complaints, would absolutely return to the Lumen and recommend highly!
p.s. Make sure you take the stairs instead of the elevator heading down. I expected the usual enclosed space but was delighted to see a beautiful design that mixed modern with retro!