Adequate for basic business accommodation near the convention center
This La Quinta means well but is showing its age. Not so much in its upkeep, as the place was clean and reasonably well maintained, and the rooms were large though utilitarian. 
Rather, it showed its age in smaller touches such as the lack of electrical outlets at tabletop level at the undersized table in the room; the fact that the electrical outlets near the table, all two of them, and both occupied by plugs powering various things on the table, were located at floor level so that you had to grovel about to plug in and unplug things; and the fact that those sockets were not powered at all until I discovered that they were (weirdly) switched on and off at the entry light switch, thus meaning that charging items from these outlets while sleeping necessitated unscrewing a light bulb. Plainly, the hotel dates from a pre-computer age where no traveler would think of bringing any electrically powered device with them. Likewise, no easily accessible sockets near the night-stands.
The staff were reasonably competent and not unfriendly, though somehat lacking in basic room maintenence training in the area of checking whether the bedside clock was correctly set. I was much inconvenienced by the fact that mine was set precisely two hours slow, so I very nearly missed the start of an important conference at the convention center. Yes, I was an idiot to rely on the hotel's clock, I admit it! But still!
Speaking of the convention center, it's a five-minute leisurely stroll away; very convenient. The Riverwalk is likewise close by, as is the Alamo, where you can admire the Alamo museum's collection of Bowie knives with coffin handles, a level of explicitness now mostly confined to the legal profession.
Breakfast is free and generous though uninspired - highly processed carbs of all kinds, mystery scrambled eggs, and even more mysterious sausage-y objects swimming in grease. No fresh fruit, or even unfresh fruit; and lovers of tradition and OCD-ers in general will be glad to know it's exactly the same every morning. Internet was free and available wirelessly via two names, La Quinta and Laquinta, only one of which actually worked. I did not find wired connections (greater security), perhaps because I was sick of groveling around under the room's table to locate sockets.
A bar (the 501) opens in the evening and offers basic bar snacks and reasonably priced adult beverages in a somewhat dispirited atmosphere reminiscent of eastern Europe, enlivened a bit by some intriguing and well-executed original paintings of musicians caught in the act.
All told, a solidly middle of the road experience that the owners could elevate by a star or so by recognizing that modern travelers need convenient access to electrons, and lots of them. Keeping the clocks on time would not be a bad idea, either.