Well I used it enough now longtemos for an objective opinion: - Closure system very well cover. You have to push a bit and cover snaps shut. It's better that systems must be clipped or all 4 sides of the lid. - The glass to be in contact with food that is healthier in my opinion than plastic. To go in the microwave too. The lids and bowl are dishwasher-safe. - The glass is not too thick - It's not too heavy - The 3 sizes are suitable for different uses - For French brand the price is right. Usually imports Great Britain or Germany cost 2 times cheaper