On a recent business trip, I chose this hotel because of its location (close to Javits Convention Center) and it's very reasonable (for NYC) price. Okay, I read the criticisms about the slow elevators, the cramped breakfast room, and a few other assorted complaints.
In short, I was very satisfied with my stay at La Quinta Manhattan. Being forewarned that the elevators are small and slow, I found that they really aren't that bad. I made a point of going to breakfast early, and there was plenty of space! Thank you Trip Advisor reviewers... sometimes it's good to have realistic expectations, and then have your expectations exceeded!