I just ordered from CT last night. This will be my third or fourth order. I used CT fabric in my round robin. I think the fabric is great. I definitely think it is better than JoAnns and washes up nicely. I think it feels on the thin side, but I think that about Moda too, so I guess it is a matter of preference. I would feel comfortable putting CT fabric in any of my projects. Guess I am not a fabric snob though. I don't use Wal-Mart fabric for much and I go by feel and how it looks after it has been washed to determine if I am going to use fabric in a quilt or not.
ThousandsofBolts has really raised their prices in the last year or so. I find I can get better deals on QS fabric at Fabric.com or other on-line stores.