I would highly recommend this hotel because the service was excellent. Whoever I came across seemed to go out of your way and do what ever was needed to help you. The hotel is very nice and the pictures on their website is exactly what it looks like - clean, modern, well appointed.
I came with my sister and her family and my parents to go to Lego Land and stayed for about 4 nights. The hotel seemed very kids friendly but as a single person, I really enjoyed myself as well. They provide breakfast there and it's next to a great living room where the kids can watch cartoons or play with West Inn's wooden blocks / games while you finish your breakfast in peace. They have books in their "living room" and they encouraged me to take a book with me if I was in the middle of it and wanted to finish it at home. The beach is a 10 min walk away or a quick drive and West Inn and Suites had umbrellas, towels, and chairs available for me to borrow.
Some of the evenings I noticed that they had a happy hour/cocktails for the adults. I did not participate but it was nice that they catered to those without children. When I was there, every night they have milk and cookies from about 8-9. It was really cute to see the kids walk down in their PJs enjoying themselves. They have alot of tables where you can sit to enjoy your snacks or even eat any take out food you brought back. They also have alot of board games if you want to play them at night.
The hotel is next to the freeway but they have double paned windows so it is quiet inside. Although the pool is also close to the freeway, they have a waterfall feature to help mask the sound of the freeway. The bistro / restaurant next to the hotel is excellent as well. I keep thinking about the braised short ribs :) I think it is popular with locals as the parking lot filled up during the week nights.
I had a wonderful time staying at the West Inn & Suites and would highly recommend this to anyone staying in Carlsbad, especially those with children and that are going to Legoland.