I've been to Vegas dozens and dozens of times and this was my first stay at Linq. The rooms were small, but very clean. They were "just rooms" but everything was fine. My only complaint about my stay was the total lack of cell service. It didn't matter what provider you had, it doesn't work there. Be prepared to receive texts from your friends tomorrow inviting you to something they did last night.
The casino area was small, but nice. All high energy throughout. There is a sports book but it's pretty limited.
What I liked most about staying there was the location. There are lots of bars / restaurants in the Linq but you walk outside and you are on the Linq Promenade with lots of options for food, shopping and music. I'll give this a 3.5/4 based on cleanliness and location. Let's hear your opinion!