Lock and lock offer good quality containers.
Depending on what colour food you store in them can discolour the plastic, however I have found this happens with most plastics.
They do last a long time. Some of the homebrand plastic containers i have purchased in the past will crack when in the freezer. I have never known lock and lock to do this.
They are a bit more (keep an eye out for a combo deal) but it is worth it.

I love these containers! They are a great storage for my kid's snacks and other food items such as pre-cut fruits and vegetables and breads and pastas. I store almost anything in these canisters and they store well and the locks keeps moisture in and seals tightly keeping food inside fresh. I just love them especially in storing leftovers.

Expensive tuber ware but I can definitely justify the price. I use mine everyday for so many different things. This product isn't for you if you don't like being organised, or better yet, this may just make you more organised. It's worth every penny, and keeps food fresh as if you haven't opened the packet.

I have bought many types of Lock & Lock over the years and they are ALL fantastic. They all snap seal easily and don't come loose. Straight from the freezer, open and bing! The container for bread is great in the fridge.
How strong they are and so easy to seal
expensive but worth every $