The user is seeking new food storage containers for their home kitchen, moving away from plastic due to several frustrations. They've experienced issues with non-universal lids, leading to leaks, as brand names are often missing. Dishwashers and microwaves have caused deformation even in supposedly high-quality plastic containers. The round shape of current containers is also criticized for inefficient space utilization. Furthermore, the user expresses a desire to avoid heating or storing food long-term in plastic. They are looking for containers with universal lids, available in multiple sizes, and reasonably priced, though they are flexible on cost. Durability in the freezer is essential, with microwave-safe functionality being a bonus. Ideally, the containers would not be plastic, although they acknowledge this might be challenging. A preference for square shapes is stated for better space efficiency. The user is open to recommendations as the low cost of current options is no longer a sufficient benefit.