Gem of a hotel off University
This hotel has been recently renovated and features modern decor and super friendly staff. I reserved 2 rooms during a busy weekend (almost all hotels in downtown were booked) and I was pleasantly surprised at the quality of the Fairfield Inn. The bed was SUPER COMFY - nothing like typical hotel mattresses, and something I would expect in a high-end, 4-5 star hotel. 
We booked a King room and a King Suite and both were superb - the king suite was spacious and enough room for several people to hang out in comfortably. 
Breakfast was complimentary the next day and the hotel also has a large indoor pool & hot tub. Dave Moran is the general manager and his customer service was excellent - he was extremely attentive and friendly and you could tell he ran a tight ship! I would absolutely stay at this hotel again and would recommend it to anyone. Book here first when you're looking for a quality Fort Worth hotel! Conveniently located in walking distance of restaurants, jogging trails, Fort Worth Zoo, and lots of fun shops.