The quality of the bricks is a bit lower than Lego, but therefore the price is a lot lower. They usually tell the source of the bricks on the site of each model, so you can do a websearch for further information.

The models are done with a lot of detailing and fun surprises inside. Compared to Lego, where it seems like they try to save money at every corner. With BlueBrixx I always feel like I'm getting a lot of extra on top.